diff --git a/pgp-verify-jar/Dockerfile b/pgp-verify-jar/Dockerfile
index 541c056..c851793 100644
--- a/pgp-verify-jar/Dockerfile
+++ b/pgp-verify-jar/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.18.4
+FROM alpine:3.18.5
 
 # hadolint ignore=DL3018
 RUN apk --update --no-cache add bash curl gnupg \