diff --git a/freeciv-web/pom.xml b/freeciv-web/pom.xml
index 11e1cc89e..7455c52e8 100644
--- a/freeciv-web/pom.xml
+++ b/freeciv-web/pom.xml
@@ -330,7 +330,7 @@ Rerun the sync-js-hand.js script.
 				<plugin>
 					<groupId>com.github.blutorange</groupId>
 					<artifactId>closure-compiler-maven-plugin</artifactId>
-					<version>2.10.0</version>
+					<version>2.26.0</version>
 					<configuration>
 						<closureLanguageIn>ECMASCRIPT_2017</closureLanguageIn>
 						<closureLanguageOut>ECMASCRIPT5</closureLanguageOut>