diff --git a/README.md b/README.md
index 2fe1a5d..f87509b 100644
--- a/README.md
+++ b/README.md
@@ -97,6 +97,11 @@ android {
 `SwirlFilterTransformation`, `BrightnessFilterTransformation`, `KuwaharaFilterTransformation`
 `VignetteFilterTransformation`
 
+### Proguard
+```
+-dontwarn jp.co.cyberagent.android.gpuimage.**
+```
+
 Applications using Glide Transformations
 ---