diff --git a/data/beaconrestapi/src/integration-test/resources/tech/pegasys/teku/beaconrestapi/beacon/paths/_eth_v1_debug_fork_choice.json b/data/beaconrestapi/src/integration-test/resources/tech/pegasys/teku/beaconrestapi/beacon/paths/_eth_v1_debug_fork_choice.json
index 7657d7ee73c..c0d7bfb15f2 100644
--- a/data/beaconrestapi/src/integration-test/resources/tech/pegasys/teku/beaconrestapi/beacon/paths/_eth_v1_debug_fork_choice.json
+++ b/data/beaconrestapi/src/integration-test/resources/tech/pegasys/teku/beaconrestapi/beacon/paths/_eth_v1_debug_fork_choice.json
@@ -63,7 +63,7 @@
                       },
                       "validity" : {
                         "type" : "string",
-                        "enum" : [ "VALID", "INVALID", "OPTIMISTIC" ]
+                        "enum" : [ "valid", "invalid", "optimistic" ]
                       },
                       "execution_block_hash" : {
                         "type" : "string",