diff --git a/docker/Dockerfile.proxy b/docker/Dockerfile.proxy
index e2ea204a..a0392fc6 100644
--- a/docker/Dockerfile.proxy
+++ b/docker/Dockerfile.proxy
@@ -1,13 +1,13 @@
 # Build stage
-FROM golang:1.20.6-alpine3.18 AS builder
+FROM golang:1.21.3-alpine3.18 AS builder
 
 ARG EXTRA_BUILD_ARGS
 
 RUN apk add \
-  bash \
-  build-base \
-  python3 \
-  git
+    bash \
+    build-base \
+    python3 \
+    git
 
 WORKDIR /code
 
diff --git a/docker/Dockerfile.synchronizer b/docker/Dockerfile.synchronizer
index 4d10cc1f..f852ed32 100644
--- a/docker/Dockerfile.synchronizer
+++ b/docker/Dockerfile.synchronizer
@@ -1,13 +1,13 @@
 # Build stage
-FROM golang:1.20.6-alpine3.18 AS builder
+FROM golang:1.21.3-alpine3.18 AS builder
 
 ARG EXTRA_BUILD_ARGS
 
 RUN apk add \
-  bash \
-  build-base \
-  python3 \
-  git
+    bash \
+    build-base \
+    python3 \
+    git
 
 WORKDIR /code