diff --git a/metadata/at.bitfire.davdroid.txt b/metadata/at.bitfire.davdroid.txt
index e512771ac3..d1abd5cc76 100644
--- a/metadata/at.bitfire.davdroid.txt
+++ b/metadata/at.bitfire.davdroid.txt
@@ -478,14 +478,15 @@ Build:1.3.7-ose,132
     subdir=app
     submodules=yes
     gradle=standard
-    prebuild=sed -i -e '/distributionUrl/s/3.2.1/3.3/' ../gradle/wrapper/gradle-wrapper.properties
+    prebuild=sed -i -e '/classpath/s/2\.\+/2.2.0/g' ../build.gradle
 
 Build:1.3.8-ose,134
     commit=v1.3.8-ose
     subdir=app
     submodules=yes
     gradle=standard
-    prebuild=sed -i -e '/distributionUrl/s/3.2.1/3.3/' ../gradle/wrapper/gradle-wrapper.properties
+    prebuild=sed -i -e '/distributionUrl/s/3.3/3.2.1/' ../gradle/wrapper/gradle-wrapper.properties && \
+        sed -i -e '/classpath/s/2\.\+/2.2.0/g' ../build.gradle
 
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 Update Check Mode:Tags ^v[0-9.]+-ose$