diff --git a/Cargo.lock b/Cargo.lock
index e36991745..73f837c54 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -92,9 +92,9 @@ checksum = "9e1b586273c5702936fe7b7d6896644d8be71e6314cfe09d3167c95f712589e8"
 
 [[package]]
 name = "base64"
-version = "0.21.4"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ba43ea6f343b788c8764558649e08df62f86c6ef251fdaeb1ffd010a9ae50a2"
+checksum = "9475866fec1451be56a3c2400fd081ff546538961565ccb5b7142cbd22bc7a51"
 
 [[package]]
 name = "bindgen"
@@ -391,7 +391,7 @@ name = "enclave_build"
 version = "0.1.0"
 dependencies = [
  "aws-nitro-enclaves-image-format",
- "base64 0.21.4",
+ "base64 0.22.0",
  "clap",
  "futures",
  "log",
diff --git a/enclave_build/Cargo.toml b/enclave_build/Cargo.toml
index 9ed9bb5cf..680bda4f1 100644
--- a/enclave_build/Cargo.toml
+++ b/enclave_build/Cargo.toml
@@ -15,7 +15,7 @@ serde_json = "1.0"
 shiplift = "0.7"
 tempfile = "3.5.0"
 tokio = { version = "1.27", features = ["rt-multi-thread"] }
-base64 = "0.21"
+base64 = "0.22"
 log = "0.4"
 url = "2.4"
 sha2 = "0.9.5"