diff --git a/core/src/main/java/org/bouncycastle/crypto/util/DigestFactory.java b/core/src/main/java/org/bouncycastle/crypto/util/DigestFactory.java
index 4456862e..80a72ea1 100644
--- a/core/src/main/java/org/bouncycastle/crypto/util/DigestFactory.java
+++ b/core/src/main/java/org/bouncycastle/crypto/util/DigestFactory.java
@@ -40,7 +40,7 @@ public Digest createClone(Digest original)
         {
             public Digest createClone(Digest original)
             {
-                return new MD5Digest((MD5Digest)original);
+                return new SHA1Digest((SHA1Digest)original);
             }
         });
         cloneMap.put(createSHA224().getAlgorithmName(), new Cloner()