diff --git a/Dockerfile b/Dockerfile
index 8298c99..6f45abc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -58,8 +58,8 @@ RUN  \
 	goreleaser -v
 
 # install ko
-ARG KO_VERSION=v0.15.2
-ARG KO_SHA=d11f03f23261d16f9e7802291e9d098e84f5daecc7931e8573bece9025b6a2c5
+ARG KO_VERSION=v0.15.4
+ARG KO_SHA=511c88351d061cd510900376ae4731dfd916ca39c1cc7de5fc6f2b5cbde2007c
 RUN  \
 	KO_DOWNLOAD_FILE=ko_${KO_VERSION#v}_Linux_x86_64.tar.gz && \
 	KO_DOWNLOAD_URL=https://github.com/ko-build/ko/releases/download/${KO_VERSION}/${KO_DOWNLOAD_FILE} && \