diff --git a/Dockerfile.alpine b/Dockerfile.alpine
index 36b5f13..9cb5a60 100644
--- a/Dockerfile.alpine
+++ b/Dockerfile.alpine
@@ -1,5 +1,5 @@
 # Build the runner binary
-FROM golang:1.21 as builder
+FROM golang:1.22 as builder
 
 WORKDIR /workspace
 # Copy the Go Modules manifests
@@ -19,7 +19,7 @@ RUN CGO_ENABLED=0 GO111MODULE=on go build -a -o runner main.go
 
 # Use distroless as minimal base image to package the runner binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM alpine:latest
+FROM alpine:3.20.1@sha256:b89d9c93e9ed3597455c90a0b88a8bbb5cb7188438f70953fede212a0c4394e0
 RUN apk add socat
 WORKDIR /
 COPY --from=builder /workspace/runner .