diff --git a/shared/build.gradle b/shared/build.gradle
index ffcc1de90..ffef45546 100644
--- a/shared/build.gradle
+++ b/shared/build.gradle
@@ -16,7 +16,7 @@ buildConfig {
 	packageName = 'net.demilich.metastone'
 	version = project.version
 	appName = rootProject.name
-	buildConfigField 'int', 'CARD_REVISION', '3'
+	buildConfigField 'int', 'CARD_REVISION', '4'
 	buildConfigField 'boolean', 'DEV_BUILD', project.hasProperty('DEV_BUILD').toString()
 	buildConfigField 'int', 'DEFAULT_SLEEP_DELAY', '100'
 }