diff --git a/README.md b/README.md
index 3c2410b..59347b7 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ protocol. It imports no server packages.
 
 | Item | Requirement |
 | --- | --- |
-| Go | 1.27.3 |
+| Go | 1.27.4 |
 | Operating system | Linux or macOS |
 | Python | Python 3 |
 | `make`, `jq` | Any version |
diff --git a/go.mod b/go.mod
index ad0f839..c1babf0 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/batchstream/weir-tests
 
-go 1.27.3
+go 1.27.4
 
 require (
 	github.com/batchstream/weir-go v0.24.1
diff --git a/versions.json b/versions.json
index 754ff3b..483702c 100644
--- a/versions.json
+++ b/versions.json
@@ -1,5 +1,5 @@
 {
-  "weir_source": "31656bc6d0d7247f222842ce8bd70988d6bdd72b",
+  "weir_source": "727f6003c4e05087b112a653bc412f0ba0004ab3",
   "mongodb_version": "8.0.32",
   "mongodb_image": "mongo@sha256:d0d926f94df099bff534b7ee5b5986458131a22489dfff8664509af0c1e2ca9c",
   "elasticsearch_version": "8.19.22",