diff --git a/Dockerfile b/Dockerfile
index 2111228..70ef3a8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.20.5-bookworm
+FROM golang:1.21.3-bookworm
 
 # hadolint ignore=DL3027
 RUN apt-get update \