diff --git a/package.json b/package.json
index 4870cc52..469f8327 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "@actions/core": "^1.6.0",
     "@actions/exec": "^1.1.1",
     "addressparser": "^1.0.1",
-    "openpgp": "^5.2.1"
+    "openpgp": "^5.3.1"
   },
   "devDependencies": {
     "@types/node": "^16.11.26",
diff --git a/yarn.lock b/yarn.lock
index a14fe2d8..0925f9f2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2787,10 +2787,10 @@ onetime@^5.1.2:
   dependencies:
     mimic-fn "^2.1.0"
 
-openpgp@^5.2.1:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/openpgp/-/openpgp-5.2.1.tgz#cc48b25eb7d1b4613a167c9e6def8717eea53429"
-  integrity sha512-zvu63kxe70q3D6WlKC/TB2pzI59I8V/l4G+z/VYgNVOyARsoH9q4i/WqwoHPjWG5HnRjhII3WSvp3gXH2DMPVg==
+openpgp@^5.3.1:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/openpgp/-/openpgp-5.3.1.tgz#001df6b33546fbed044686d4d6af7e80ed9354d2"
+  integrity sha512-CxjY4gZ3D0pp6dJUmcM6EgjvDv0u+LsY+3ymULPZYRUPa0tmigDXHNUm5EX+omqmU401DTQNO6ud+QA6UpCdEA==
   dependencies:
     asn1.js "^5.0.0"