diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77662d80a6..978c71b91f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## 1.21.1 in progress
+## 1.21.1 2026-06-04
 
 * [BUGFIX] gRPC: Fix panic when `grpc_compression` is set to `snappy` on ingester client or store-gateway client configurations. #7459
 * [BUGFIX] Config: Mask Swift, etcd, Redis, and HTTP basic-auth credentials on the `/config` endpoint. #7473
diff --git a/VERSION b/VERSION
index 3ebc53c409..2844977405 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.21.1-rc.0
+1.21.1
diff --git a/docs/getting-started/.env b/docs/getting-started/.env
index fdc6c05d8a..aaa17e2e94 100644
--- a/docs/getting-started/.env
+++ b/docs/getting-started/.env
@@ -1,4 +1,4 @@
-CORTEX_VERSION=v1.21.0
+CORTEX_VERSION=v1.21.1
 GRAFANA_VERSION=10.4.2
 PROMETHEUS_VERSION=v3.2.1
 SEAWEEDFS_VERSION=3.67