diff --git a/README.md b/README.md
index 776526b..111f4a4 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ RxJava 3 interop library for supporting Java 9 features such as `Flow.*`
 # Release
 
 ```groovy
-compile 'com.github.akarnokd:rxjava3-jdk9-interop:3.0.0-RC3'
+compile 'com.github.akarnokd:rxjava3-jdk9-interop:3.0.0-RC4'
 ```
 
 # Examples
diff --git a/gradle.properties b/gradle.properties
index 1d3c022..96a3dd5 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
-version=3.0.0-RC3
+version=3.0.0-RC4
 org.gradle.jvmargs=-XX:+IgnoreUnrecognizedVMOptions --permit-illegal-access --show-version
 
diff --git a/src/test/java/hu/akarnokd/rxjava3/jdk9interop/FlowInteropTest.java b/src/test/java/hu/akarnokd/rxjava3/jdk9interop/FlowInteropTest.java
index 950fdeb..ffb6047 100644
--- a/src/test/java/hu/akarnokd/rxjava3/jdk9interop/FlowInteropTest.java
+++ b/src/test/java/hu/akarnokd/rxjava3/jdk9interop/FlowInteropTest.java
@@ -312,7 +312,7 @@ public void flowProcessorToFlowableProcessorOnSubscribe() {
     public void flowProcessorToFlowableProcessorDecrementOnce() {
         AtomicReference<Flow.Subscriber<? super Integer>> sub = new AtomicReference<>();
 
-        Flow.Processor<Integer, Integer> proc = new Flow.Processor<Integer, Integer>() {
+        Flow.Processor<Integer, Integer> proc = new Flow.Processor<>() {
 
             @Override
             public void onComplete() {