diff --git a/Cargo.lock b/Cargo.lock
index 408d357..caa73f8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2568,9 +2568,9 @@ checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3"
 
 [[package]]
 name = "stacker"
-version = "0.1.19"
+version = "0.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d9156ebd5870ef293bfb43f91c7a74528d363ec0d424afe24160ed5a4343d08a"
+checksum = "cddb07e32ddb770749da91081d8d0ac3a16f1a569a18b20348cd371f5dead06b"
 dependencies = [
  "cc",
  "cfg-if",
diff --git a/Cargo.toml b/Cargo.toml
index ae45898..c8fd636 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -88,7 +88,7 @@ assert_tv = { version = "0.6.4" }
 base64 = { version = "0.22.1" }
 serial_test = "3.2.0"
 tempfile = "3"
-stacker = "0.1.17"
+stacker = "0.1.21"
 libfuzzer-sys = "0.4"
 test_bin = "0.4.0"
 criterion = "0.5.1"
diff --git a/supply-chain/config.toml b/supply-chain/config.toml
index 396bd69..9dbddb4 100644
--- a/supply-chain/config.toml
+++ b/supply-chain/config.toml
@@ -662,7 +662,7 @@ version = "0.9.8"
 criteria = "safe-to-deploy"
 
 [[exemptions.stacker]]
-version = "0.1.19"
+version = "0.1.21"
 criteria = "safe-to-deploy"
 
 [[exemptions.syn]]