diff --git a/package.json b/package.json
index 067d601..e9173eb 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "launchdarkly-js-client-sdk": "3.3.0",
     "prettier": "3.3.0",
     "rollup": "4.18.0",
-    "tslib": "2.6.2",
+    "tslib": "2.6.3",
     "typescript": "5.4.5",
     "xstream": "11.14.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 436f687..6913d84 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1723,10 +1723,10 @@ tsconfig-paths@^3.15.0:
     minimist "^1.2.6"
     strip-bom "^3.0.0"
 
-tslib@2.6.2:
-  version "2.6.2"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.2.tgz#703ac29425e7b37cd6fd456e92404d46d1f3e4ae"
-  integrity sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q==
+tslib@2.6.3:
+  version "2.6.3"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.6.3.tgz#0438f810ad7a9edcde7a241c3d80db693c8cbfe0"
+  integrity sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ==
 
 type-check@^0.4.0, type-check@~0.4.0:
   version "0.4.0"