diff --git a/vector/replay-capture/Dockerfile b/vector/replay-capture/Dockerfile
index 02ad7b517ddc7..0715ef32a54ae 100644
--- a/vector/replay-capture/Dockerfile
+++ b/vector/replay-capture/Dockerfile
@@ -7,7 +7,9 @@ COPY vector.yaml .
 # evaluate with yq, basically to expand anchors (which vector doesn't support)
 RUN yq -i e 'explode(.)' vector.yaml
 
-# nightly vector to include this fix https://github.com/vectordotdev/vector/commit/dc0b4087095b4968cca0201e233919de8cff9918
-FROM timberio/vector@sha256:f30cba5e4efcf554aea09a3f970fc75a140750ded0095840a47a8b9c9571100c
+# fork of vector from this branch: https://github.com/frankh/vector/tree/main
+# includes 2 fixed: 1 to make Kafka temporary errors return 500 not 400
+# and 1 to allow us to set response body on the http source
+FROM frankh/vector:0.41.0-patched
 
 COPY --from=config-builder /config/vector.yaml /etc/vector/vector.yaml
diff --git a/vector/replay-capture/vector.yaml b/vector/replay-capture/vector.yaml
index 8bcc51a10676f..23f8052e29f53 100644
--- a/vector/replay-capture/vector.yaml
+++ b/vector/replay-capture/vector.yaml
@@ -32,6 +32,7 @@ sources:
         query_parameters:
             - _
         host_key: ip
+        response_body_key: '%response'
         decoding:
             codec: vrl
             vrl:
@@ -62,6 +63,8 @@ sources:
                     assert!(is_string(.message[0].properties."$$session_id"), "$$session_id is required")
                     assert!(is_string(%token), "token is required")
 
+                    %response = {"status": 1}
+
 transforms:
     quota_check:
         type: route