diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c524150a..e709fad7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
 
       - name: Setup Go
         uses: actions/setup-go@v4
-        with: { go-version: '1.20' }
+        with: { go-version: '1.21' }
 
       - name: Build go2rtc_win64
         env: { GOOS: windows, GOARCH: amd64 }
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 99ec86bc..a98a83e5 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.20'
+          go-version: '1.21'
 
       - name: Build Go binary
         run: go build -ldflags "-s -w" -trimpath -o ./go2rtc
diff --git a/Dockerfile b/Dockerfile
index 10936d45..f28f4e2f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 
 # 0. Prepare images
 ARG PYTHON_VERSION="3.11"
-ARG GO_VERSION="1.20"
+ARG GO_VERSION="1.21"
 ARG NGROK_VERSION="3"
 
 FROM python:${PYTHON_VERSION}-alpine AS base
diff --git a/go.mod b/go.mod
index edc178f4..c2651e91 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/AlexxIT/go2rtc
 
-go 1.20
+go 1.21
 
 require (
 	github.com/gorilla/websocket v1.5.0
diff --git a/hardware.Dockerfile b/hardware.Dockerfile
index 3c0bf7d8..b3e064c6 100644
--- a/hardware.Dockerfile
+++ b/hardware.Dockerfile
@@ -3,7 +3,7 @@
 # 0. Prepare images
 # only debian 12 (bookworm) has latest ffmpeg
 ARG DEBIAN_VERSION="bookworm-slim"
-ARG GO_VERSION="1.20-buster"
+ARG GO_VERSION="1.21-bookworm"
 ARG NGROK_VERSION="3"
 
 FROM debian:${DEBIAN_VERSION} AS base