diff --git a/java_tools/gradle.properties b/java_tools/gradle.properties
index 7a53500367..e7a3a34c87 100644
--- a/java_tools/gradle.properties
+++ b/java_tools/gradle.properties
@@ -1,4 +1,4 @@
 # seems not to work sorry
 # org.gradle.unsafe.configuration-cache=true
 
-shadowVersion=7.1.2
\ No newline at end of file
+shadowVersion=8.1.1
\ No newline at end of file