diff --git a/build/docker/ubuntu-focal/Dockerfile b/build/docker/ubuntu-focal/Dockerfile
index 00ab2be..2c2b312 100644
--- a/build/docker/ubuntu-focal/Dockerfile
+++ b/build/docker/ubuntu-focal/Dockerfile
@@ -145,9 +145,9 @@
       libglib2.0-dev
 
 # golang
-ENV GOLANG_VERSION 1.20
+ENV GOLANG_VERSION 1.21.7
 ENV GOLANG_DOWNLOAD_URL https://go.dev/dl/go$GOLANG_VERSION.linux-amd64.tar.gz
-ENV GOLANG_DOWNLOAD_SHA256 5a9ebcc65c1cce56e0d2dc616aff4c4cedcfbda8cc6f0288cc08cda3b18dcbf1
+ENV GOLANG_DOWNLOAD_SHA256 13b76a9b2a26823e53062fa841b07087d48ae2ef2936445dc34c4ae03293702c
 RUN curl -fsSL "$GOLANG_DOWNLOAD_URL" -o golang.tar.gz && \
       echo "$GOLANG_DOWNLOAD_SHA256  golang.tar.gz" | sha256sum -c - && \
       tar -C /usr/local -xzf golang.tar.gz && \