diff --git a/tool-testsuite/test/org/antlr/v4/test/tool/TestPerformance.java b/tool-testsuite/test/org/antlr/v4/test/tool/TestPerformance.java
index 70ee76406..e10bd42f0 100644
--- a/tool-testsuite/test/org/antlr/v4/test/tool/TestPerformance.java
+++ b/tool-testsuite/test/org/antlr/v4/test/tool/TestPerformance.java
@@ -76,8 +76,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicIntegerArray;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import java.util.zip.CRC32;
-import java.util.zip.Checksum;
+import org.antlr.v4.runtime.misc.MurmurHash;
 
 import static org.hamcrest.CoreMatchers.instanceOf;
 import static org.junit.Assert.assertThat;
@@ -825,7 +824,7 @@ public class TestPerformance extends BaseJavaToolTest {
 			results.add(futureChecksum);
         }
 
-		Checksum checksum = new CRC32();
+		MurmurHashChecksum checksum = new MurmurHashChecksum();
 		int currentIndex = -1;
 		for (Future<FileParseResult> future : results) {
 			currentIndex++;
@@ -1115,14 +1114,11 @@ public class TestPerformance extends BaseJavaToolTest {
         assertTrue(success);
     }
 
-	private static void updateChecksum(Checksum checksum, int value) {
-		checksum.update((value) & 0xFF);
-		checksum.update((value >>> 8) & 0xFF);
-		checksum.update((value >>> 16) & 0xFF);
-		checksum.update((value >>> 24) & 0xFF);
+	private static void updateChecksum(MurmurHashChecksum checksum, int value) {
+		checksum.update(value);
 	}
 
-	private static void updateChecksum(Checksum checksum, Token token) {
+	private static void updateChecksum(MurmurHashChecksum checksum, Token token) {
 		if (token == null) {
 			checksum.update(0);
 			return;
@@ -1154,7 +1150,7 @@ public class TestPerformance extends BaseJavaToolTest {
 
 				@Override
                 public FileParseResult parseFile(CharStream input, int currentPass, int thread) {
-					final Checksum checksum = new CRC32();
+					final MurmurHashChecksum checksum = new MurmurHashChecksum();
 
 					final long startTime = System.nanoTime();
 					assert thread >= 0 && thread < NUMBER_OF_THREADS;
@@ -1835,9 +1831,9 @@ public class TestPerformance extends BaseJavaToolTest {
 		private static final int ENTER_RULE = 3;
 		private static final int EXIT_RULE = 4;
 
-		private final Checksum checksum;
+		private final MurmurHashChecksum checksum;
 
-		public ChecksumParseTreeListener(Checksum checksum) {
+		public ChecksumParseTreeListener(MurmurHashChecksum checksum) {
 			this.checksum = checksum;
 		}
 
@@ -1928,6 +1924,24 @@ public class TestPerformance extends BaseJavaToolTest {
 		}
 	}
 
+	private static class MurmurHashChecksum {
+		private int value;
+		private int count;
+
+		public MurmurHashChecksum() {
+			this.value = MurmurHash.initialize();
+		}
+
+		public void update(int value) {
+			this.value = MurmurHash.update(this.value, value);
+			this.count++;
+		}
+
+		public int getValue() {
+			return MurmurHash.finish(value, count);
+		}
+	}
+
 	@Test(timeout = 20000)
 	public void testExponentialInclude() {
 		String grammarFormat =