diff --git a/ko/Dockerfile b/ko/Dockerfile
index 01f3338..200045a 100644
--- a/ko/Dockerfile
+++ b/ko/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/golang:1.19-bullseye as downloader
+FROM docker.io/golang:1.20-bullseye as downloader
 
 RUN apt-get update && \
 	apt-get install -y \
@@ -7,6 +7,6 @@ RUN apt-get update && \
 	export KO_VERSION=$(curl https://api.github.com/repos/ko-build/ko/releases | jq -r '. | first |.tag_name | capture("(?<version>[[:digit:]]+\\.[[:digit:]]+\\.[[:digit:]]+)") | .version') && \
 	curl -L "https://github.com/ko-build/ko/releases/download/v${KO_VERSION}/ko_${KO_VERSION}_Linux_x86_64.tar.gz" | tar xvz -C /tmp
 
-FROM docker.io/golang:1.19-bullseye as final
+FROM docker.io/golang:1.20-bullseye as final
 
 COPY --from=downloader /tmp/ko /usr/local/bin/ko