diff --git a/Cargo.lock b/Cargo.lock
index b78479e1b53..62d2c0ce5e9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2252,12 +2252,12 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.8.1"
+version = "1.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0f647032dfaa1f8b6dc29bd3edb7bbef4861b8b8007ebb118d6db284fd59f6ee"
+checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
 dependencies = [
  "autocfg",
- "hashbrown 0.11.2",
+ "hashbrown 0.12.1",
  "serde",
 ]
 
@@ -3396,6 +3396,7 @@ dependencies = [
  "reed-solomon-erasure",
  "serde",
  "serde_json",
+ "serde_yaml",
  "smart-default",
  "strum",
  "thiserror",
@@ -5229,9 +5230,9 @@ dependencies = [
 
 [[package]]
 name = "serde_yaml"
-version = "0.8.24"
+version = "0.8.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "707d15895415db6628332b737c838b88c598522e4dc70647e59b72312924aebc"
+checksum = "578a7433b776b56a35785ed5ce9a7e777ac0598aac5a6dd1b4b18a307c7fc71b"
 dependencies = [
  "indexmap",
  "ryu",
diff --git a/Cargo.toml b/Cargo.toml
index a28f130a534..69bad9d1353 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -170,6 +170,7 @@ serde = { version = "1.0.136", features = ["alloc", "derive", "rc"] }
 serde_ignored = "0.1"
 serde_json = "1.0.68"
 serde_repr = "0.1.8"
+serde_yaml = "0.8.26"
 sha2 = "0.10"
 sha3 = "0.10"
 shell-escape = "0.1.5"
diff --git a/core/primitives/Cargo.toml b/core/primitives/Cargo.toml
index 1a249b991b1..2a6f756c41a 100644
--- a/core/primitives/Cargo.toml
+++ b/core/primitives/Cargo.toml
@@ -29,6 +29,7 @@ rand.workspace = true
 reed-solomon-erasure.workspace = true
 serde.workspace = true
 serde_json.workspace = true
+serde_yaml.workspace = true
 smart-default.workspace = true
 stdx.workspace = true
 strum.workspace = true
diff --git a/core/primitives/res/README.md b/core/primitives/res/README.md
index f532fa0d16d..e0a824c5979 100644
--- a/core/primitives/res/README.md
+++ b/core/primitives/res/README.md
@@ -4,18 +4,18 @@ Stores resource data which is part of the protocol stable enough to be moved out
 
 ### `runtime_configs`
 
-All parameter value to configure the runtime are defined in `parameters.txt`.
+All parameter value to configure the runtime are defined in `parameters.yaml`.
 Parameters added or changed in protocol upgrades are defined in differential
-config files with a naming scheme like `V.txt`, where `V` is the new version.
+config files with a naming scheme like `V.yaml`, where `V` is the new version.
 
 The content of the base configuration file is one flat list of typed keys and
 untyped values. Key names are defined in
 `core/primitives-core/src/parameter.rs`.
 
 The format of the differential files is slightly different. Inserting new
-parameters uses the same syntax as the base configuration file: `key: value`.
-Parameters that change are specified like this: `key: old_value -> new_value`.
+parameters uses the following syntax: `key: { new: value }`.
+Parameters that change are specified like this: `key: { old: old_value, new: new_value }`.
 Removing a previously defined parameter for a new version is done as follows: 
-`key: old_value ->`. This causes the parameter value to be undefined in newer
+`key: { old: old_value }`. This causes the parameter value to be undefined in newer
 versions which generally means the default value is used to fill in the
 `RuntimeConfig` object.
diff --git a/core/primitives/res/runtime_configs/42.txt b/core/primitives/res/runtime_configs/42.txt
deleted file mode 100644
index 875589ae8f4..00000000000
--- a/core/primitives/res/runtime_configs/42.txt
+++ /dev/null
@@ -1 +0,0 @@
-storage_amount_per_byte: 100_000_000_000_000_000_000 -> 10_000_000_000_000_000_000
diff --git a/core/primitives/res/runtime_configs/42.yaml b/core/primitives/res/runtime_configs/42.yaml
new file mode 100644
index 00000000000..8f79cc5cd19
--- /dev/null
+++ b/core/primitives/res/runtime_configs/42.yaml
@@ -0,0 +1 @@
+storage_amount_per_byte: { old: 100_000_000_000_000_000_000, new: 10_000_000_000_000_000_000 }
diff --git a/core/primitives/res/runtime_configs/48.txt b/core/primitives/res/runtime_configs/48.txt
deleted file mode 100644
index 830213d8917..00000000000
--- a/core/primitives/res/runtime_configs/48.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-wasm_regular_op_cost: 3_856_371 -> 2_207_874
-wasm_ecrecover_base: 3_365_369_625_000 -> 278_821_988_457
-data_receipt_creation_base_send_sir: 4_697_339_419_375 -> 36_486_732_312
-data_receipt_creation_base_send_not_sir: 4_697_339_419_375 -> 36_486_732_312
-data_receipt_creation_base_execution: 4_697_339_419_375 -> 36_486_732_312
-data_receipt_creation_per_byte_send_sir: 59_357_464 -> 17_212_011
-data_receipt_creation_per_byte_send_not_sir: 59_357_464 -> 17_212_011
-data_receipt_creation_per_byte_execution: 59_357_464 -> 17_212_011
diff --git a/core/primitives/res/runtime_configs/48.yaml b/core/primitives/res/runtime_configs/48.yaml
new file mode 100644
index 00000000000..bb6807967a3
--- /dev/null
+++ b/core/primitives/res/runtime_configs/48.yaml
@@ -0,0 +1,8 @@
+wasm_regular_op_cost: { old: 3_856_371, new: 2_207_874 }
+wasm_ecrecover_base: { old: 3_365_369_625_000, new: 278_821_988_457 }
+data_receipt_creation_base_send_sir: { old: 4_697_339_419_375, new: 36_486_732_312 }
+data_receipt_creation_base_send_not_sir: { old: 4_697_339_419_375, new: 36_486_732_312 }
+data_receipt_creation_base_execution: { old: 4_697_339_419_375, new: 36_486_732_312 }
+data_receipt_creation_per_byte_send_sir: { old: 59_357_464, new: 17_212_011 }
+data_receipt_creation_per_byte_send_not_sir: { old: 59_357_464, new: 17_212_011 }
+data_receipt_creation_per_byte_execution: { old: 59_357_464, new: 17_212_011 }
diff --git a/core/primitives/res/runtime_configs/49.txt b/core/primitives/res/runtime_configs/49.txt
deleted file mode 100644
index 141d0c82aa1..00000000000
--- a/core/primitives/res/runtime_configs/49.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-wasm_regular_op_cost: 2_207_874 -> 822_756
-max_functions_number_per_contract: 10_000
diff --git a/core/primitives/res/runtime_configs/49.yaml b/core/primitives/res/runtime_configs/49.yaml
new file mode 100644
index 00000000000..c88d0db7997
--- /dev/null
+++ b/core/primitives/res/runtime_configs/49.yaml
@@ -0,0 +1,2 @@
+wasm_regular_op_cost: { old: 2_207_874, new: 822_756 }
+max_functions_number_per_contract: { new: 10_000 }
diff --git a/core/primitives/res/runtime_configs/50.txt b/core/primitives/res/runtime_configs/50.txt
deleted file mode 100644
index 807d57581dc..00000000000
--- a/core/primitives/res/runtime_configs/50.txt
+++ /dev/null
@@ -1 +0,0 @@
-stack_limiter_version: 0 -> 1
diff --git a/core/primitives/res/runtime_configs/50.yaml b/core/primitives/res/runtime_configs/50.yaml
new file mode 100644
index 00000000000..9c266cff266
--- /dev/null
+++ b/core/primitives/res/runtime_configs/50.yaml
@@ -0,0 +1 @@
+stack_limiter_version: { old: 0, new: 1 }
diff --git a/core/primitives/res/runtime_configs/52.txt b/core/primitives/res/runtime_configs/52.txt
deleted file mode 100644
index e5f54a0351a..00000000000
--- a/core/primitives/res/runtime_configs/52.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-max_gas_burnt: 200_000_000_000_000 -> 300_000_000_000_000
-max_gas_burnt_view: 200_000_000_000_000 -> 300_000_000_000_000
diff --git a/core/primitives/res/runtime_configs/52.yaml b/core/primitives/res/runtime_configs/52.yaml
new file mode 100644
index 00000000000..cbd07cdaf62
--- /dev/null
+++ b/core/primitives/res/runtime_configs/52.yaml
@@ -0,0 +1,2 @@
+max_gas_burnt: { old: 200_000_000_000_000, new: 300_000_000_000_000 }
+max_gas_burnt_view: { old: 200_000_000_000_000, new: 300_000_000_000_000 }
diff --git a/core/primitives/res/runtime_configs/53.txt b/core/primitives/res/runtime_configs/53.txt
deleted file mode 100644
index 13bd07041f3..00000000000
--- a/core/primitives/res/runtime_configs/53.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-action_deploy_contract_per_byte_execution: 6_812_999 -> 64_572_944
-wasmer2_stack_limit: 204_800
-max_length_storage_key: 4_194_304 -> 2_048
-max_locals_per_contract: 1_000_000
diff --git a/core/primitives/res/runtime_configs/53.yaml b/core/primitives/res/runtime_configs/53.yaml
new file mode 100644
index 00000000000..e322b4507cf
--- /dev/null
+++ b/core/primitives/res/runtime_configs/53.yaml
@@ -0,0 +1,4 @@
+action_deploy_contract_per_byte_execution: { old: 6_812_999, new: 64_572_944 }
+wasmer2_stack_limit: { new: 204_800 }
+max_length_storage_key: { old: 4_194_304, new: 2_048 }
+max_locals_per_contract: { new: 1_000_000 }
diff --git a/core/primitives/res/runtime_configs/57.txt b/core/primitives/res/runtime_configs/57.txt
deleted file mode 100644
index ad517496ca9..00000000000
--- a/core/primitives/res/runtime_configs/57.txt
+++ /dev/null
@@ -1 +0,0 @@
-account_id_validity_rules_version: 0 -> 1
diff --git a/core/primitives/res/runtime_configs/57.yaml b/core/primitives/res/runtime_configs/57.yaml
new file mode 100644
index 00000000000..436ee3e0807
--- /dev/null
+++ b/core/primitives/res/runtime_configs/57.yaml
@@ -0,0 +1 @@
+account_id_validity_rules_version: { old: 0, new: 1 }
diff --git a/core/primitives/res/runtime_configs/parameters.txt b/core/primitives/res/runtime_configs/parameters.yaml
similarity index 99%
rename from core/primitives/res/runtime_configs/parameters.txt
rename to core/primitives/res/runtime_configs/parameters.yaml
index c4ab8633ab6..f6224056621 100644
--- a/core/primitives/res/runtime_configs/parameters.txt
+++ b/core/primitives/res/runtime_configs/parameters.yaml
@@ -10,7 +10,7 @@ pessimistic_gas_price_inflation_denominator: 100
 
 # Account creation config
 min_allowed_top_level_account_length: 32
-registrar_account_id: registrar
+registrar_account_id: "registrar"
 
 # Storage usage config
 storage_amount_per_byte: 100_000_000_000_000_000_000
@@ -156,5 +156,4 @@ max_length_storage_key: 4_194_304
 max_length_storage_value: 4_194_304
 max_promises_per_function_call_action: 1_024
 max_number_input_data_dependencies: 128
-stack_limiter_version: 0
 account_id_validity_rules_version: 0
diff --git a/core/primitives/res/runtime_configs/parameters_testnet.txt b/core/primitives/res/runtime_configs/parameters_testnet.yaml
similarity index 99%
rename from core/primitives/res/runtime_configs/parameters_testnet.txt
rename to core/primitives/res/runtime_configs/parameters_testnet.yaml
index 158cce82351..84c72591272 100644
--- a/core/primitives/res/runtime_configs/parameters_testnet.txt
+++ b/core/primitives/res/runtime_configs/parameters_testnet.yaml
@@ -6,7 +6,7 @@ pessimistic_gas_price_inflation_denominator: 100
 
 # Account creation config
 min_allowed_top_level_account_length: 0
-registrar_account_id: registrar
+registrar_account_id: "registrar"
 
 # Storage usage config
 storage_amount_per_byte: 100_000_000_000_000_000_000
diff --git a/core/primitives/src/runtime/config_store.rs b/core/primitives/src/runtime/config_store.rs
index 46bdc750095..15d0cb185c0 100644
--- a/core/primitives/src/runtime/config_store.rs
+++ b/core/primitives/src/runtime/config_store.rs
@@ -13,25 +13,25 @@ macro_rules! include_config {
 
 /// The base config file with all initial parameter values defined.
 /// Later version are calculated by applying diffs to this base.
-static BASE_CONFIG: &str = include_config!("parameters.txt");
+static BASE_CONFIG: &str = include_config!("parameters.yaml");
 
 /// Stores pairs of protocol versions for which runtime config was updated and
 /// the file containing the diffs in bytes.
 static CONFIG_DIFFS: &[(ProtocolVersion, &str)] = &[
-    (42, include_config!("42.txt")),
-    (48, include_config!("48.txt")),
-    (49, include_config!("49.txt")),
-    (50, include_config!("50.txt")),
+    (42, include_config!("42.yaml")),
+    (48, include_config!("48.yaml")),
+    (49, include_config!("49.yaml")),
+    (50, include_config!("50.yaml")),
     // max_gas_burnt increased to 300 TGas
-    (52, include_config!("52.txt")),
+    (52, include_config!("52.yaml")),
     // Increased deployment costs, increased wasmer2 stack_limit, added limiting of contract locals,
     // set read_cached_trie_node cost, decrease storage key limit
-    (53, include_config!("53.txt")),
-    (57, include_config!("57.txt")),
+    (53, include_config!("53.yaml")),
+    (57, include_config!("57.yaml")),
 ];
 
 /// Testnet parameters for versions <= 29, which (incorrectly) differed from mainnet parameters
-pub static INITIAL_TESTNET_CONFIG: &str = include_config!("parameters_testnet.txt");
+pub static INITIAL_TESTNET_CONFIG: &str = include_config!("parameters_testnet.yaml");
 
 /// Stores runtime config for each protocol version where it was updated.
 #[derive(Debug)]
diff --git a/core/primitives/src/runtime/parameter_table.rs b/core/primitives/src/runtime/parameter_table.rs
index d040df0d4be..a61ba17dd1d 100644
--- a/core/primitives/src/runtime/parameter_table.rs
+++ b/core/primitives/src/runtime/parameter_table.rs
@@ -25,10 +25,10 @@ pub(crate) enum InvalidConfigError {
     UnknownParameter(#[source] strum::ParseError, String),
     #[error("could not parse `{1}` as a value")]
     ValueParseError(#[source] serde_json::Error, String),
-    #[error("expected a `:` separator between name and value of a parameter `{1}` on line {0}")]
-    NoSeparator(usize, String),
     #[error("intermediate JSON created by parser does not match `RuntimeConfig`")]
     WrongStructure(#[source] serde_json::Error),
+    #[error("could not parse YAML that defines the structure of the config")]
+    InvalidYaml(#[source] serde_yaml::Error),
     #[error("config diff expected to contain old value `{1}` for parameter `{0}`")]
     OldValueExists(Parameter, String),
     #[error(
@@ -46,12 +46,24 @@ pub(crate) enum InvalidConfigError {
 impl std::str::FromStr for ParameterTable {
     type Err = InvalidConfigError;
     fn from_str(arg: &str) -> Result<ParameterTable, InvalidConfigError> {
-        let parameters = txt_to_key_values(arg)
-            .map(|result| {
-                let (typed_key, value) = result?;
-                Ok((typed_key, parse_parameter_txt_value(value.trim())?))
+        // TODO(#8320): Remove this after migration to `serde_yaml` 0.9 that supports empty strings.
+        if arg.is_empty() {
+            return Ok(ParameterTable { parameters: BTreeMap::new() });
+        }
+
+        let yaml_map: BTreeMap<String, String> =
+            serde_yaml::from_str(arg).map_err(|err| InvalidConfigError::InvalidYaml(err))?;
+
+        let parameters = yaml_map
+            .iter()
+            .map(|(key, value)| {
+                let typed_key: Parameter = key
+                    .parse()
+                    .map_err(|err| InvalidConfigError::UnknownParameter(err, key.to_owned()))?;
+                Ok((typed_key, parse_parameter_txt_value(value)?))
             })
             .collect::<Result<BTreeMap<_, _>, _>>()?;
+
         Ok(ParameterTable { parameters })
     }
 }
@@ -206,58 +218,45 @@ impl ParameterTable {
     }
 }
 
+/// Represents YAML values supported by parameter diff config.
+#[derive(serde::Deserialize, Clone, Debug)]
+struct ParameterDiffValue {
+    old: Option<String>,
+    new: Option<String>,
+}
+
 impl std::str::FromStr for ParameterTableDiff {
     type Err = InvalidConfigError;
     fn from_str(arg: &str) -> Result<ParameterTableDiff, InvalidConfigError> {
-        let parameters = txt_to_key_values(arg)
-            .map(|result| {
-                let (typed_key, value) = result?;
-                if let Some((before, after)) = value.split_once("->") {
-                    Ok((
-                        typed_key,
-                        (
-                            parse_parameter_txt_value(before.trim())?,
-                            parse_parameter_txt_value(after.trim())?,
-                        ),
-                    ))
+        let yaml_map: BTreeMap<String, ParameterDiffValue> =
+            serde_yaml::from_str(arg).map_err(|err| InvalidConfigError::InvalidYaml(err))?;
+
+        let parameters = yaml_map
+            .iter()
+            .map(|(key, value)| {
+                let typed_key: Parameter = key
+                    .parse()
+                    .map_err(|err| InvalidConfigError::UnknownParameter(err, key.to_owned()))?;
+
+                let old_value = if let Some(s) = &value.old {
+                    parse_parameter_txt_value(s)?
                 } else {
-                    Ok((
-                        typed_key,
-                        (serde_json::Value::Null, parse_parameter_txt_value(value.trim())?),
-                    ))
-                }
+                    serde_json::Value::Null
+                };
+
+                let new_value = if let Some(s) = &value.new {
+                    parse_parameter_txt_value(s)?
+                } else {
+                    serde_json::Value::Null
+                };
+
+                Ok((typed_key, (old_value, new_value)))
             })
             .collect::<Result<BTreeMap<_, _>, _>>()?;
         Ok(ParameterTableDiff { parameters })
     }
 }
 
-fn txt_to_key_values(
-    arg: &str,
-) -> impl Iterator<Item = Result<(Parameter, &str), InvalidConfigError>> {
-    arg.lines()
-        .enumerate()
-        .filter_map(|(nr, line)| {
-            // ignore comments and empty lines
-            let trimmed = line.trim();
-            if trimmed.starts_with("#") || trimmed.is_empty() {
-                None
-            } else {
-                Some((nr, trimmed))
-            }
-        })
-        .map(|(nr, trimmed)| {
-            let (key, value) = trimmed
-                .split_once(":")
-                .ok_or(InvalidConfigError::NoSeparator(nr + 1, trimmed.to_owned()))?;
-            let typed_key: Parameter = key
-                .trim()
-                .parse()
-                .map_err(|err| InvalidConfigError::UnknownParameter(err, key.to_owned()))?;
-            Ok((typed_key, value))
-        })
-}
-
 /// Parses a value from the custom format for runtime parameter definitions.
 ///
 /// A value can be a positive integer or a string, both written without quotes.
@@ -360,17 +359,17 @@ storage_num_extra_bytes_record   :   40
 
     static DIFF_0: &str = r#"
 # Comment line
-registrar_account_id: registrar -> near
-min_allowed_top_level_account_length: 32 -> 32_000
-wasm_regular_op_cost: 3_856_371
+registrar_account_id: { old: "registrar", new: "near" }
+min_allowed_top_level_account_length: { old: 32, new: 32_000 }
+wasm_regular_op_cost: { new: 3_856_371 }
 "#;
 
     static DIFF_1: &str = r#"
 # Comment line
-registrar_account_id: near -> registrar
-storage_num_extra_bytes_record: 40 -> 77
-wasm_regular_op_cost: 3_856_371 -> 0
-max_memory_pages: 512
+registrar_account_id: { old: "near", new: "registrar" }
+storage_num_extra_bytes_record: { old: 40, new: 77 }
+wasm_regular_op_cost: { old: 3_856_371, new: 0 }
+max_memory_pages: { new: 512 }
 "#;
 
     // Tests synthetic small example configurations. For tests with "real"
@@ -452,7 +451,7 @@ max_memory_pages: 512
 
     #[test]
     fn test_parameter_table_with_empty_value() {
-        let diff_with_empty_value = "min_allowed_top_level_account_length: 32 -> ";
+        let diff_with_empty_value = "min_allowed_top_level_account_length: { old: 32 }";
         check_parameter_table(
             BASE_0,
             &[diff_with_empty_value],
@@ -478,7 +477,10 @@ max_memory_pages: 512
     #[test]
     fn test_parameter_table_invalid_key_in_diff() {
         assert_matches!(
-            check_invalid_parameter_table("wasm_regular_op_cost: 100", &["invalid_key: 100"]),
+            check_invalid_parameter_table(
+                "wasm_regular_op_cost: 100",
+                &["invalid_key: { new: 100 }"]
+            ),
             InvalidConfigError::UnknownParameter(_, _)
         );
     }
@@ -487,6 +489,7 @@ max_memory_pages: 512
     fn test_parameter_table_no_key() {
         assert_matches!(
             check_invalid_parameter_table(": 100", &[]),
+            // TODO(#8320): This must be invalid YAML after migration to `serde_yaml` 0.9.
             InvalidConfigError::UnknownParameter(_, _)
         );
     }
@@ -495,7 +498,7 @@ max_memory_pages: 512
     fn test_parameter_table_no_key_in_diff() {
         assert_matches!(
             check_invalid_parameter_table("wasm_regular_op_cost: 100", &[": 100"]),
-            InvalidConfigError::UnknownParameter(_, _)
+            InvalidConfigError::InvalidYaml(_)
         );
     }
 
@@ -503,7 +506,7 @@ max_memory_pages: 512
     fn test_parameter_table_wrong_separator() {
         assert_matches!(
             check_invalid_parameter_table("wasm_regular_op_cost=100", &[]),
-            InvalidConfigError::NoSeparator(1, _)
+            InvalidConfigError::InvalidYaml(_)
         );
     }
 
@@ -514,7 +517,7 @@ max_memory_pages: 512
                 "wasm_regular_op_cost: 100",
                 &["wasm_regular_op_cost=100"]
             ),
-            InvalidConfigError::NoSeparator(1, _)
+            InvalidConfigError::InvalidYaml(_)
         );
     }
 
@@ -523,7 +526,7 @@ max_memory_pages: 512
         assert_matches!(
             check_invalid_parameter_table(
                 "min_allowed_top_level_account_length: 3_200_000_000",
-                &["min_allowed_top_level_account_length: 3_200_000 -> 1_600_000"]
+                &["min_allowed_top_level_account_length: { old: 3_200_000, new: 1_600_000 }"]
             ),
             InvalidConfigError::WrongOldValue(
                 Parameter::MinAllowedTopLevelAccountLength,
@@ -541,7 +544,7 @@ max_memory_pages: 512
         assert_matches!(
             check_invalid_parameter_table(
                 "min_allowed_top_level_account_length: 3_200_000_000",
-                &["min_allowed_top_level_account_length: 1_600_000"]
+                &["min_allowed_top_level_account_length: { new: 1_600_000 }"]
             ),
             InvalidConfigError::OldValueExists(Parameter::MinAllowedTopLevelAccountLength, expected) => {
                 assert_eq!(expected, "3200000000");
@@ -554,7 +557,7 @@ max_memory_pages: 512
         assert_matches!(
             check_invalid_parameter_table(
                 "min_allowed_top_level_account_length: 3_200_000_000",
-                &["wasm_regular_op_cost: 3_200_000 -> 1_600_000"]
+                &["wasm_regular_op_cost: { old: 3_200_000, new: 1_600_000 }"]
             ),
             InvalidConfigError::NoOldValueExists(Parameter::WasmRegularOpCost, found) => {
                 assert_eq!(found, "3200000");
diff --git a/docs/architecture/gas/parameter_definition.md b/docs/architecture/gas/parameter_definition.md
index ee76ec8ff6b..3aa403cf866 100644
--- a/docs/architecture/gas/parameter_definition.md
+++ b/docs/architecture/gas/parameter_definition.md
@@ -1,7 +1,7 @@
 # Parameter Definitions
 
 Gas parameters are a subset of runtime parameters that are defined in
-[core/primitives/res/runtime_configs/parameters.txt](https://github.com/near/nearcore/blob/d0dc37bf81f7e7bde9c560403b085fae04108659/core/primitives/res/runtime_configs/parameters.txt).
+[core/primitives/res/runtime_configs/parameters.yaml](https://github.com/near/nearcore/blob/d0dc37bf81f7e7bde9c560403b085fae04108659/core/primitives/res/runtime_configs/parameters.yaml).
 IMPORTANT: This is not the final list of parameters, it contains the base values
 which can be overwritten per protocol version. For example,
 [53.txt](https://github.com/near/nearcore/blob/d0dc37bf81f7e7bde9c560403b085fae04108659/core/primitives/res/runtime_configs/53.txt)
@@ -57,7 +57,7 @@ parameter.
 
 ### Necessary Code Changes
 Adding the parameter in code involves several steps.
-1. Define the parameter by adding it to the list in `core/primitives/res/runtime_configs/parameters.txt.`
+1. Define the parameter by adding it to the list in `core/primitives/res/runtime_configs/parameters.yaml.`
 2. Update the Rust view of parameters by adding a variant to `enum Parameter`
    in `core/primitives-core/src/parameter.rs`. In the same file, update
    `enum FeeParameter` if you add an action cost or update `ext_costs()`
@@ -77,7 +77,7 @@ Adding the parameter in code involves several steps.
    behind a feature flag. Add the feature to the `Cargo.toml` of each crate
    touched in step 3 and 4 and hide the code behind `#[cfg(feature =
    "protocol_feature_MY_NEW_FEATURE")]`. Do not hide code in step 2 so that
-   non-nightly builds can still read `parameters.txt`. Also add your feature as
+   non-nightly builds can still read `parameters.yaml`. Also add your feature as
    a dependency on `nightly` in `core/primitives/Cargo.toml` to make sure it
    gets included when compiling for nightly. After that, check `cargo check` and
    `cargo test --no-run` with and without `features=nightly`.