diff --git a/build.gradle b/build.gradle
index 9121c8b..a562a8e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -14,7 +14,7 @@ ext {
     heartCoordinates = 'com.github.stephengold:Heart:9.0.0' + jmeTarget
 
     // current versions of libraries:
-    jme3Version = '3.6.1-stable'
+    jme3Version = '3.7.0-alpha3.1'
     wesVersion = '0.8.1' + jmeTarget + wesSnapshot
 }