diff --git a/package.json b/package.json
index 6509992..3f3a63b 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "@octokit/webhooks-types": "^5.3.0",
     "env-ci": "^7.1.0",
     "isomorphic-fetch": "^3.0.0",
-    "tslib": "^2.3.1"
+    "tslib": "^2.5.0"
   },
   "devDependencies": {
     "@types/env-ci": "^3.1.1",
diff --git a/yarn.lock b/yarn.lock
index 36410bd..983f8e2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3073,9 +3073,9 @@ tslib@^1.8.1:
   version "1.14.1"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
 
-tslib@^2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.3.1.tgz#e8a335add5ceae51aa261d32a490158ef042ef01"
+tslib@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.5.0.tgz#42bfed86f5787aeb41d031866c8f402429e0fddf"
 
 tsutils@^3.21.0:
   version "3.21.0"