diff --git a/package.json b/package.json
index 31c7caa..0401d27 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "@salesforce/ts-types": "^1.7.2",
     "sinon": "^5.1.1",
-    "tslib": "^2.2.0"
+    "tslib": "^2.5.0"
   },
   "devDependencies": {
     "@salesforce/dev-config": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index 7ae80f5..af35e5e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4514,10 +4514,10 @@ tslib@^1.8.1, tslib@^1.9.3:
   resolved "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz#cf2d38bdc34a134bcaf1091c41f6619e2f672d00"
   integrity sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==
 
-tslib@^2.0.0, tslib@^2.0.3, tslib@^2.2.0, tslib@^2.4.1:
-  version "2.4.1"
-  resolved "https://registry.npmjs.org/tslib/-/tslib-2.4.1.tgz#0d0bfbaac2880b91e22df0768e55be9753a5b17e"
-  integrity sha512-tGyy4dAjRIEwI7BzsB0lynWgOpfqjUdq91XXAlIWD2OwKBH7oCl/GZG/HT4BOHrTlPMOASlMQ7veyTqpmRcrNA==
+tslib@^2.0.0, tslib@^2.0.3, tslib@^2.4.1, tslib@^2.5.0:
+  version "2.5.0"
+  resolved "https://registry.npmjs.org/tslib/-/tslib-2.5.0.tgz#42bfed86f5787aeb41d031866c8f402429e0fddf"
+  integrity sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg==
 
 tsutils@^3.21.0:
   version "3.21.0"