diff --git a/metadata/com.murrayc.galaxyzoo.app.txt b/metadata/com.murrayc.galaxyzoo.app.txt
index 66a6c347db..9b19e0b0dc 100644
--- a/metadata/com.murrayc.galaxyzoo.app.txt
+++ b/metadata/com.murrayc.galaxyzoo.app.txt
@@ -48,7 +48,7 @@ Build:1.31,31
     commit=1.31
     subdir=app
     gradle=yes
-    prebuild=sed -i -e 's/21.0.2/21.0.+/g' -e 's/gradle:1.0.0/gradle:0.14.0/g'  build.gradle ../build.gradle
+    prebuild=sed -i -e 's/21.0.2/21.0.+/g' -e 's/gradle:1.0.0-rc4/gradle:0.14.0/g'  build.gradle ../build.gradle
 
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