diff --git a/Cargo.lock b/Cargo.lock
index 35de63d..f71db37 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -380,6 +380,12 @@ 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 = "base64ct"
 version = "1.6.0"
@@ -3467,7 +3473,7 @@ name = "timestampvm"
 version = "0.0.19"
 dependencies = [
  "avalanche-types",
- "base64 0.21.7",
+ "base64 0.22.0",
  "bytes",
  "chrono",
  "clap",
diff --git a/timestampvm/Cargo.toml b/timestampvm/Cargo.toml
index 451a55e..bb60fde 100644
--- a/timestampvm/Cargo.toml
+++ b/timestampvm/Cargo.toml
@@ -12,7 +12,7 @@ readme = "../README.md"
 
 [dependencies]
 avalanche-types = { version = "0.1.5", features = ["subnet", "codec_base64"] } # https://crates.io/crates/avalanche-types
-base64 = { version = "0.21.7" }
+base64 = { version = "0.22.0" }
 bytes = "1.5.0"
 chrono = "0.4.34"
 clap = { version = "4.5.2", features = ["cargo", "derive"] } # https://github.com/clap-rs/clap/releases