Bump versionCode
diff --git a/LottieSample/build.gradle b/LottieSample/build.gradle
index d27d8bf..0516573 100644
--- a/LottieSample/build.gradle
+++ b/LottieSample/build.gradle
@@ -10,7 +10,7 @@
     applicationId "com.airbnb.lottie"
     minSdkVersion 16
     targetSdkVersion 26
-    versionCode 21
+    versionCode 22
     versionName "2.2.4"
     testInstrumentationRunner "com.airbnb.lottie.TestRunner"
     vectorDrawables.useSupportLibrary = true