diff --git a/system-images/android/sdk/create-apk b/system-images/android/sdk/create-apk
index 14b7408..9252389 100755
--- a/system-images/android/sdk/create-apk
+++ b/system-images/android/sdk/create-apk
@@ -1,23 +1,26 @@
 #!/bin/bash
 set -e
 
 DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 export PATH=$DIR:$PATH
 
 package=$1
 shift
 
+#Replace versionCode with seconds from epoch
+find src/$package -name AndroidManifest.xml -exec sed -i s/'android:versionCode="[0-9]*"'/android:versionCode=\"$(date +%s)\"/ {} \;
+
 pushd build/$package
 
 if [ -f /keys/${package}keystore-config ]; then
     ARGS="`cat /keys/${package}keystore-config` $ARGS" make create-apk
 elif [ -f /keys/androidkeystore-config ]; then
     ARGS="`cat /keys/androidkeystore-config` $ARGS" make create-apk
 else
     make create-apk
 fi
 
 if [ -d /output ]
 then
     find *_build_apk/build/outputs/apk/ -name \*.apk -exec cp-with-prefix "$ANDROID_ARCH" {} /output/ \;
 fi