diff --git a/src/test/java/org/htmlunit/ExternalTest.java b/src/test/java/org/htmlunit/ExternalTest.java
index b6a99dea5dc..98bd230a459 100644
--- a/src/test/java/org/htmlunit/ExternalTest.java
+++ b/src/test/java/org/htmlunit/ExternalTest.java
@@ -62,7 +62,7 @@ public class ExternalTest {
     static String EDGE_DRIVER_URL_ = "https://developer.microsoft.com/en-us/microsoft-edge/tools/webdriver/";
 
     /** Gecko driver. */
-    static String GECKO_DRIVER_ = "0.33.0";
+    static String GECKO_DRIVER_ = "0.34.0";
     static String GECKO_DRIVER_URL_ = "https://github.com/mozilla/geckodriver/releases/latest";
 
     /** IE driver. */