diff --git a/src/specs/models/experiment-bodies/ExperimentInfo.v2.yaml b/src/specs/models/experiment-bodies/ExperimentInfo.v2.yaml
index 89c1f8173..a60239e9d 100644
--- a/src/specs/models/experiment-bodies/ExperimentInfo.v2.yaml
+++ b/src/specs/models/experiment-bodies/ExperimentInfo.v2.yaml
@@ -47,15 +47,11 @@ properties:
         nullable: true
         type: object
         properties:
-          paramsHash:
-            nullable: true
-            type: string
           stateMachineArn:
             type: string
           executionArn:
             type: string
         required:
-          - paramsHash
           - stateMachineArn
           - executionArn
       qc: