diff --git a/.drone.yml b/.drone.yml
index fcd0287..18559e5 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -67,7 +67,7 @@ steps:
 - name: unit-test
   commands:
   - go test -v ./...
-  image: docker.io/library/golang:1.21.3
+  image: docker.io/library/golang:1.21.4
 
 trigger:
   event:
@@ -92,7 +92,7 @@ steps:
 - name: unit-test
   commands:
   - go test -v ./...
-  image: docker.io/library/golang:1.21.3
+  image: docker.io/library/golang:1.21.4
 
 trigger:
   event:
diff --git a/Dockerfile b/Dockerfile
index 9992be2..8d98008 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/golang:1.21.3-alpine3.18 AS build
+FROM docker.io/library/golang:1.21.4-alpine3.18 AS build
 
 RUN apk add git make