diff --git a/library/consumer-proguard-rules.pro b/library/consumer-proguard-rules.pro
index 1e7f016..b495a7b 100644
--- a/library/consumer-proguard-rules.pro
+++ b/library/consumer-proguard-rules.pro
@@ -1,7 +1,7 @@
 # there's usage of GSON's @SerializedName
 -keepattributes *Annotation*
 
--keepclassmembers,allowobfuscation class * {
+-keepclasseswithmembers,allowobfuscation class * {
   @com.google.gson.annotations.SerializedName <fields>;
 }