diff --git a/src/Runner.Worker/Handlers/CompositeActionHandler.cs b/src/Runner.Worker/Handlers/CompositeActionHandler.cs
index e83b5fb67..e6ac600d5 100644
--- a/src/Runner.Worker/Handlers/CompositeActionHandler.cs
+++ b/src/Runner.Worker/Handlers/CompositeActionHandler.cs
@@ -61,7 +61,7 @@ namespace GitHub.Runner.Worker.Handlers
             var compositeGitHubContext = new GitHubContext();
             foreach (var pair in githubContext)
             {
-                compositeGitHubContext[pair.Key] = pair.Value;
+                compositeGitHubContext[pair.Key] = pair.Value.Clone();
             }
 
             foreach (Pipelines.ActionStep actionStep in actionSteps)