diff --git a/package.json b/package.json
index 1682041..dea394f 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "@octokit/webhooks": "^9.17.0",
     "async-mutex": "^0.3.1",
     "probot": "^12.1.0",
-    "shelljs": "^0.8.4",
+    "shelljs": "^0.8.5",
     "smee-client": "^1.2.2"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 11f7249..e4b8223 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4337,10 +4337,10 @@ shebang-regex@^3.0.0:
   resolved "https://registry.yarnpkg.com/shebang-regex/-/shebang-regex-3.0.0.tgz#ae16f1644d873ecad843b0307b143362d4c42172"
   integrity sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==
 
-shelljs@^0.8.4:
-  version "0.8.4"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.4.tgz#de7684feeb767f8716b326078a8a00875890e3c2"
-  integrity sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==
+shelljs@^0.8.5:
+  version "0.8.5"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.5.tgz#de055408d8361bed66c669d2f000538ced8ee20c"
+  integrity sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"