diff --git a/pmd-test/src/test/java/net/sourceforge/pmd/testframework/RuleTstTest.java b/pmd-test/src/test/java/net/sourceforge/pmd/testframework/RuleTstTest.java
index 0820b89857..033a32f5b4 100644
--- a/pmd-test/src/test/java/net/sourceforge/pmd/testframework/RuleTstTest.java
+++ b/pmd-test/src/test/java/net/sourceforge/pmd/testframework/RuleTstTest.java
@@ -15,7 +15,6 @@ import java.util.Arrays;
 
 import org.junit.Assert;
 import org.junit.Test;
-import org.mockito.ArgumentMatchers;
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;