diff --git a/serverless.yml b/serverless.yml
index b6454349..8cf60038 100644
--- a/serverless.yml
+++ b/serverless.yml
@@ -35,8 +35,7 @@ custom:
     dockerFile: backend/docker/Dockerfile
     useDocker: true
     dockerSsh: true
-    fileName:
-      - serverless_requirements.txt
+    fileName: serverless_requirements.txt
     dockerBuildCmdExtraArgs:
       - '--progress=plain'
   customDomain: