diff --git a/.go-version b/.go-version
index 20a1265cf..ce2dd5357 100644
--- a/.go-version
+++ b/.go-version
@@ -1 +1 @@
-1.21.4
+1.21.5
diff --git a/cmd/bbolt/README.md b/cmd/bbolt/README.md
index acd416c3d..047b4977a 100644
--- a/cmd/bbolt/README.md
+++ b/cmd/bbolt/README.md
@@ -72,7 +72,7 @@
   ```bash
   $bbolt version
   bbolt version: 1.3.7
-  Go Version: go1.21.4
+  Go Version: go1.21.5
   Go OS/Arch: darwin/arm64
   ```