diff --git a/Cargo.lock b/Cargo.lock
index df22ace05..3e02422e3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -98,6 +98,12 @@ version = "0.21.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
 
+[[package]]
+name = "base64"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
+
 [[package]]
 name = "bit_field"
 version = "0.10.2"
@@ -441,7 +447,7 @@ dependencies = [
 name = "dicom-json"
 version = "0.1.1"
 dependencies = [
- "base64",
+ "base64 0.22.0",
  "dicom-core",
  "dicom-dictionary-std",
  "dicom-object",
@@ -1956,7 +1962,7 @@ version = "2.9.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "11f214ce18d8b2cbe84ed3aa6486ed3f5b285cf8d8fbdbce9f3f767a724adc35"
 dependencies = [
- "base64",
+ "base64 0.21.5",
  "flate2",
  "log",
  "once_cell",
diff --git a/json/Cargo.toml b/json/Cargo.toml
index 9adae027b..9ddd2f02a 100644
--- a/json/Cargo.toml
+++ b/json/Cargo.toml
@@ -10,7 +10,7 @@ keywords = ["dicom", "attributes", "json", "serialization"]
 readme = "README.md"
 
 [dependencies]
-base64 = "0.21.2"
+base64 = "0.22"
 dicom-core = { version = "0.6.3", path = "../core" }
 dicom-dictionary-std = { version = "0.6.1", path = "../dictionary-std" }
 dicom-object = { version = "0.6.3", path = "../object" }