diff --git a/convert/Cargo.toml b/convert/Cargo.toml
index e6ee60e..1575132 100644
--- a/convert/Cargo.toml
+++ b/convert/Cargo.toml
@@ -11,7 +11,7 @@ description = "Traits to make Rust types usable with Extism"
 
 [dependencies]
 anyhow = "1.0.75"
-base64 = "~0.22"
+base64 = "~0.23"
 bytemuck = {version = "1.14.0", optional = true }
 prost = { version = "0.14.4", optional = true }
 protobuf = { version = "4.35.0-release", optional = true }
diff --git a/manifest/Cargo.toml b/manifest/Cargo.toml
index ae1fc99..1c26933 100644
--- a/manifest/Cargo.toml
+++ b/manifest/Cargo.toml
@@ -10,7 +10,7 @@ version.workspace = true
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-base64 = "~0.22"
+base64 = "~0.23"
 schemars = { version = "1.2", optional = true }
 serde_json = "1"