diff --git a/gradle.properties b/gradle.properties
index 154fe7772b4..8ee2bf8ecda 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -117,7 +117,7 @@ coreJsBundleVersion=3.6.1
 regeneratorRuntimeVersion=0.13.2
 jstreeVersion=3.3.9
 webComponentPolyfillVersion=2.4.4
-whatwgFetchPolyfillVersion=3.4.1
+whatwgFetchPolyfillVersion=3.5.0
 
 # gradle settings
 org.gradle.parallel=true