diff --git a/CHANGES.txt b/CHANGES.txt
index ed8ea6eea5..c72c01af8f 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,7 @@
 4.1-beta2
  * Allow pre-V5 global limit on bytes in flight to revert to zero asynchronously in RateLimitingTest (CASSANDRA-17927)
 Merged from 4.0:
+ * Fix ASM bytecode version inconsistency (CASSANDRA-17873)
  * Remove empty cq4 files in log directory to not fail the startup of BinLog (CASSANDRA-17933)
  * Fix multiple BufferPool bugs (CASSANDRA-16681)
  * Fix StorageService.getNativeaddress handling of IPv6 addresses (CASSANDRA-17945)
diff --git a/src/java/org/apache/cassandra/cql3/functions/UDFByteCodeVerifier.java b/src/java/org/apache/cassandra/cql3/functions/UDFByteCodeVerifier.java
index e3b461c045..ab913b4868 100644
--- a/src/java/org/apache/cassandra/cql3/functions/UDFByteCodeVerifier.java
+++ b/src/java/org/apache/cassandra/cql3/functions/UDFByteCodeVerifier.java
@@ -160,7 +160,7 @@ public final class UDFByteCodeVerifier
 
         ExecuteImplVisitor(Set<String> errors)
         {
-            super(Opcodes.ASM5);
+            super(Opcodes.ASM7);
             this.errors = errors;
         }
 
@@ -210,7 +210,7 @@ public final class UDFByteCodeVerifier
 
         ConstructorVisitor(Set<String> errors)
         {
-            super(Opcodes.ASM5);
+            super(Opcodes.ASM7);
             this.errors = errors;
         }