diff --git a/ion/src/test/java/com/fasterxml/jackson/dataformat/ion/failing/IonFuzz_473_66131_AIOOBE_Test.java b/ion/src/test/java/com/fasterxml/jackson/dataformat/ion/failing/IonFuzz_473_66131_AIOOBE_Test.java
index 41609841e..e721bdc02 100644
--- a/ion/src/test/java/com/fasterxml/jackson/dataformat/ion/failing/IonFuzz_473_66131_AIOOBE_Test.java
+++ b/ion/src/test/java/com/fasterxml/jackson/dataformat/ion/failing/IonFuzz_473_66131_AIOOBE_Test.java
@@ -8,11 +8,9 @@
 import com.fasterxml.jackson.core.exc.StreamReadException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.dataformat.ion.*;
-import com.fasterxml.jackson.dataformat.ion.fuzz.IonFuzzTestUtil;
 
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
 import static org.junit.Assert.fail;
 
 //[dataformats-binary#473]: ArrayIndexOutOfBoundsException
@@ -23,13 +21,12 @@ public class IonFuzz_473_66131_AIOOBE_Test
 
     @Test
     public void testFuzz66077_ArrayIndexOOBE() throws Exception {
-        final byte[] doc = IonFuzzTestUtil.readResource("/data/fuzz-66131.ion");
+        final byte[] doc = { (byte) 0xe0, 0x01, 0x00, (byte) 0xea, (byte) 0xdc, (byte) 0x9a };
         try (JsonParser p = ION_MAPPER.createParser(doc)) {
-            assertEquals(JsonToken.VALUE_STRING, p.nextToken());
-            assertNull(p.nextToken());
+            assertEquals(JsonToken.START_OBJECT, p.nextToken());
+            p.nextTextValue();
             fail("Should not pass (invalid content)");
         } catch (StreamReadException e) {
-            // May or may not be the exception message to get, change as appropriate
             assertThat(e.getMessage(), Matchers.containsString("Corrupt content to decode"));
         }
     }
diff --git a/ion/src/test/resources/data/fuzz-66131.ion b/ion/src/test/resources/data/fuzz-66131.ion
deleted file mode 100644
index 70e1aee05..000000000
Binary files a/ion/src/test/resources/data/fuzz-66131.ion and /dev/null differ