diff --git a/MavDemo2/build.gradle b/MavDemo2/build.gradle
index 65fc67a1..3241bb01 100644
--- a/MavDemo2/build.gradle
+++ b/MavDemo2/build.gradle
@@ -22,7 +22,7 @@ dependencies {
 
     // non-JME dependencies:
     runtimeOnly 'com.github.nifty-gui:nifty-style-black:1.4.3'
-    implementation 'com.github.stephengold:Acorus:1.1.0'
+    implementation 'com.github.stephengold:Acorus:1.1.1'
     implementation 'com.github.stephengold:jme3-utilities-nifty:0.9.35'
     implementation garrettCoordinates
     implementation jmePowerCoordinates