diff --git a/generator/build.gradle b/generator/build.gradle
index fd927ee0..96265dab 100644
--- a/generator/build.gradle
+++ b/generator/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id 'application'
-    id 'com.github.johnrengelman.shadow' version '7.1.2'
+    id 'com.github.johnrengelman.shadow' version '8.1.1'
 }
 
 application {
diff --git a/mapgeneditor/build.gradle b/mapgeneditor/build.gradle
index f343458f..1e4d2435 100644
--- a/mapgeneditor/build.gradle
+++ b/mapgeneditor/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id 'application'
-    id 'com.github.johnrengelman.shadow' version '7.1.2'
+    id 'com.github.johnrengelman.shadow' version '8.1.1'
 }
 
 application {
diff --git a/toolsuite/build.gradle b/toolsuite/build.gradle
index 9c38162a..f67fa90c 100644
--- a/toolsuite/build.gradle
+++ b/toolsuite/build.gradle
@@ -1,6 +1,6 @@
 plugins {
     id 'application'
-    id 'com.github.johnrengelman.shadow' version '7.1.2'
+    id 'com.github.johnrengelman.shadow' version '8.1.1'
 }
 
 application {