diff --git a/action.Dockerfile b/action.Dockerfile
index 800284d..0d7c889 100644
--- a/action.Dockerfile
+++ b/action.Dockerfile
@@ -1,7 +1,5 @@
 FROM golang:1 AS build
 
-RUN apk update && apk add --no-cache ca-certificates
-
 WORKDIR $GOPATH/src/gumieri/ecsctl
 
 COPY go.mod go.sum ./