diff --git a/build.assets/versions.mk b/build.assets/versions.mk
index 1cc0486154547..8b157c6658206 100644
--- a/build.assets/versions.mk
+++ b/build.assets/versions.mk
@@ -3,7 +3,7 @@
 # Keep versions in sync with devbox.json, when applicable.
 
 # Sync with devbox.json.
-GOLANG_VERSION ?= go1.21.8
+GOLANG_VERSION ?= go1.21.9
 GOLANGCI_LINT_VERSION ?= v1.57.2
 
 NODE_VERSION ?= 20.11.1
diff --git a/go.mod b/go.mod
index bfc7d55a9e429..cc338f10b1e79 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/gravitational/teleport
 
 go 1.21
 
-toolchain go1.21.8
+toolchain go1.21.9
 
 require (
 	cloud.google.com/go/compute v1.23.3