diff --git a/Dockerfile b/Dockerfile
index cd7a4489..f1660344 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@
 # limitations under the License.
 
 # Build the manager binary
-FROM golang:1.21-alpine as builder
+FROM golang:1.21.5-alpine as builder
 ARG TARGETOS
 ARG TARGETARCH
 ARG OPERATOR_VERSION
diff --git a/go.mod b/go.mod
index 7bb59e70..94628584 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/ariga/atlas-operator
 
 go 1.21
 
-toolchain go1.21.2
+toolchain go1.21.5
 
 require (
 	ariga.io/atlas v0.15.1-0.20231119120023-a36a5859611e