diff --git a/cosmwasm/Cargo.lock b/cosmwasm/Cargo.lock
index e840cb9f5..c920e32f7 100644
--- a/cosmwasm/Cargo.lock
+++ b/cosmwasm/Cargo.lock
@@ -66,9 +66,9 @@ checksum = "b41b7ea54a0c9d92199de89e20e58d49f02f8e699814ef3fdf266f6f748d15c7"
 
 [[package]]
 name = "base64"
-version = "0.12.3"
+version = "0.21.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3441f0f7b02788e948e47f457ca01f1d7e6d92c693bc132c22b087d3141c03ff"
+checksum = "3f1e31e207a6b8fb791a38ea3105e6cb541f55e4d029902d3039a4ad07cc4105"
 
 [[package]]
 name = "bitflags"
@@ -148,7 +148,7 @@ checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
 name = "cosmwasm-sgx-vm"
 version = "0.10.0"
 dependencies = [
- "base64 0.12.3",
+ "base64 0.21.1",
  "enclave-ffi-types",
  "hex",
  "lazy_static",
diff --git a/cosmwasm/packages/sgx-vm/Cargo.toml b/cosmwasm/packages/sgx-vm/Cargo.toml
index b204d927a..9dd2d129c 100644
--- a/cosmwasm/packages/sgx-vm/Cargo.toml
+++ b/cosmwasm/packages/sgx-vm/Cargo.toml
@@ -66,7 +66,7 @@ enclave-ffi-types = { path = "../../enclaves/ffi-types", features = [
 sgx_types = { path = "../../../third_party/incubator-teaclave-sgx-sdk/sgx_types" }
 sgx_urts = { path = "../../../third_party/incubator-teaclave-sgx-sdk/sgx_urts" }
 log = "0.4.8"
-base64 = "0.12.0"
+base64 = "0.21.1"
 parking_lot = "0.11"
 num_cpus = "1.14.0"