diff --git a/Dockerfile b/Dockerfile
index edcc081..ca341c6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -64,7 +64,7 @@ RUN abuild checksum && abuild -r
 
 FROM alpine:3.19.0
 
-ARG PHP_VERSION="8.3.0"
+ARG PHP_VERSION="8.3.1"
 ARG PHP_PACKAGE_BASENAME="phpzts83"
 ARG PHP_FPM_BINARY_PATH="/usr/sbin/php-fpmzts83"
 ARG UNIT_VERSION="1.31.1"