diff --git a/ethcontract-common/Cargo.toml b/ethcontract-common/Cargo.toml
index 9a631393..71f2c944 100644
--- a/ethcontract-common/Cargo.toml
+++ b/ethcontract-common/Cargo.toml
@@ -13,10 +13,10 @@ Common types for ethcontract-rs runtime and proc macro.
 
 [dependencies]
 ethabi = "18.0"
-hex = "0.4"
-serde = "1.0"
-serde_derive = "1.0"
-serde_json = "1.0"
-thiserror = "1.0"
-tiny-keccak = { version = "2.0", features = ["keccak"] }
+hex = "0.4.3"
+serde = "1.0.198"
+serde_derive = "1.0.198"
+serde_json = "1.0.116"
+thiserror = "1.0.58"
+tiny-keccak = { version = "2.0.2", features = ["keccak"] }
 web3 = { version = "0.19", default-features = false }
diff --git a/ethcontract-derive/Cargo.toml b/ethcontract-derive/Cargo.toml
index 77240977..b63bfd51 100644
--- a/ethcontract-derive/Cargo.toml
+++ b/ethcontract-derive/Cargo.toml
@@ -22,6 +22,6 @@ proc-macro = true
 anyhow = "1.0"
 ethcontract-common = { version = "0.25.5", path = "../ethcontract-common" }
 ethcontract-generate = { version = "0.25.5", path = "../ethcontract-generate", default-features = false }
-proc-macro2 = "1.0"
-quote = "1.0"
-syn = "2.0"
+proc-macro2 = "1.0.81"
+quote = "1.0.36"
+syn = "2.0.60"
diff --git a/ethcontract-generate/Cargo.toml b/ethcontract-generate/Cargo.toml
index b8575d85..c438b36e 100644
--- a/ethcontract-generate/Cargo.toml
+++ b/ethcontract-generate/Cargo.toml
@@ -16,11 +16,11 @@ default = ["http"]
 http = ["curl"]
 
 [dependencies]
-anyhow = "1.0"
-curl = { version = "0.4", optional = true }
+anyhow = "1.0.82"
+curl = { version = "0.4.46", optional = true }
 ethcontract-common = { version = "0.25.5", path = "../ethcontract-common" }
-Inflector = "0.11"
-proc-macro2 = "1.0"
-quote = "1.0"
-syn = "2.0"
-url = "2.1"
+Inflector = "0.11.4"
+proc-macro2 = "1.0.81"
+quote = "1.0.36"
+syn = "2.0.60"
+url = "2.5.0"
diff --git a/ethcontract-mock/Cargo.toml b/ethcontract-mock/Cargo.toml
index 84e0097b..68557b34 100644
--- a/ethcontract-mock/Cargo.toml
+++ b/ethcontract-mock/Cargo.toml
@@ -13,11 +13,11 @@ Tools for mocking ethereum contracts.
 
 [dependencies]
 ethcontract = { version = "0.25.5", path = "../ethcontract", default-features = false, features = ["derive"] }
-hex = "0.4"
-mockall = "0.11"
-rlp = "0.5"
-predicates = "3.0"
+hex = "0.4.3"
+mockall = "0.12.1"
+rlp = "0.5.2"
+predicates = "3.1.0"
 
 [dev-dependencies]
-tokio = { version = "1.6", features = ["macros", "rt"] }
+tokio = { version = "1.37.0", features = ["macros", "rt"] }
 ethcontract-derive = { version = "0.25.5", path = "../ethcontract-derive", default-features = false }
diff --git a/ethcontract/Cargo.toml b/ethcontract/Cargo.toml
index 4ff1524d..5667aef7 100644
--- a/ethcontract/Cargo.toml
+++ b/ethcontract/Cargo.toml
@@ -32,26 +32,26 @@ ws-tls-tokio = ["web3/ws-tls-tokio"]
 ws-tokio = ["web3/ws-tokio"]
 
 [dependencies]
-aws-config = { version = "0.55", optional = true }
-aws-sdk-kms = { version = "0.28", optional = true }
-arrayvec = "0.7"
+aws-config = { version = "1.2.0", optional = true }
+aws-sdk-kms = { version = "1.21.0", optional = true }
+arrayvec = "0.7.4"
 ethcontract-common = { version = "0.25.5", path = "../ethcontract-common" }
 ethcontract-derive = { version = "0.25.5", path = "../ethcontract-derive", optional = true, default-features = false }
 futures = "0.3"
-futures-timer = "3.0"
-hex = "0.4"
+futures-timer = "3.0.3"
+hex = "0.4.3"
 jsonrpc-core = "18.0"
 lazy_static = "1.4"
-primitive-types = { version = "0.12", features = ["fp-conversion"] }
-rlp = { version = "0.5", default-features = false, optional = true }
-secp256k1 = { version = "0.27", features = ["recovery"] }
+primitive-types = { version = "0.12.2", features = ["fp-conversion"] }
+rlp = { version = "0.5.2", default-features = false, optional = true }
+secp256k1 = { version = "0.29.0", features = ["recovery"] }
 serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-thiserror = "1.0"
-uint = "0.9"
+serde_json = "1.0.116"
+thiserror = "1.0.58"
+uint = "0.9.5"
 web3 = { version = "0.19", default-features = false, features = ["signing"] }
-zeroize = "1.1"
+zeroize = "1.7.0"
 
 [dev-dependencies]
-hex-literal = "0.4"
-tokio = { version = "1.6", features = ["macros"] }
+hex-literal = "0.4.1"
+tokio = { version = "1.37.0", features = ["macros"] }