diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 527d4d9b..2115f3a0 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -36,6 +36,9 @@
 -dontnote retrofit2.Platform$IOS$MainThreadExecutor
 # Platform used when running on Java 8 VMs. Will not be used at runtime.
 -dontwarn retrofit2.Platform$Java8
+-dontwarn retrofit2.adapter.rxjava.CompletableHelper$CompletableCallAdapter
+-dontwarn retrofit2.adapter.rxjava.CompletableHelper$CompletableCallOnSubscribe
+-dontwarn retrofit2.adapter.rxjava.CompletableHelper$CompletableCallOnSubscribe$1
 # Retain generic type information for use by reflection by converters and adapters.
 -keepattributes Signature
 # Retain declared checked exceptions for use by a Proxy instance.