diff --git a/test/Dockerfile.jammy b/test/Dockerfile.jammy
index 7808292288..8906098e52 100644
--- a/test/Dockerfile.jammy
+++ b/test/Dockerfile.jammy
@@ -40,7 +40,7 @@ RUN install-tool flutter 3.0.2
 RUN install-tool flux v0.38.3
 
 # renovate: datasource=docker versioning=docker
-RUN install-tool golang 1.19.5
+RUN install-tool golang 1.20.0
 
 # renovate: datasource=github-releases packageName=helm/helm
 RUN install-tool helm v3.11.0
diff --git a/test/golang/Dockerfile b/test/golang/Dockerfile
index db1183834e..b08dd0e2f5 100644
--- a/test/golang/Dockerfile
+++ b/test/golang/Dockerfile
@@ -20,7 +20,7 @@ ARG APT_HTTP_PROXY
 ARG BUILDPACK_DEBUG
 
 # renovate: datasource=docker versioning=docker
-RUN install-tool golang 1.19.5
+RUN install-tool golang 1.20.0
 
 USER 1000
 
@@ -74,7 +74,7 @@ RUN prepare-tool golang
 USER 1000
 
 # renovate: datasource=docker versioning=docker
-RUN install-tool golang 1.19.5
+RUN install-tool golang 1.20.0
 
 
 RUN set -ex; cd a; go get -d ./...; cat go.sum; go mod tidy; cat go.sum