diff --git a/Dockerfile b/Dockerfile
index 0f909f16..f03c2b72 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 ARG BASE_IMAGE=debian:bookworm-slim
-ARG PHP_VERSION=8.3
+ARG PHP_VERSION=8.4
 
 FROM ${BASE_IMAGE} AS base
 ARG PHP_VERSION
diff --git a/Dockerfile-frankenphp b/Dockerfile-frankenphp
index 74d94e81..dccb41e1 100644
--- a/Dockerfile-frankenphp
+++ b/Dockerfile-frankenphp
@@ -1,4 +1,4 @@
-FROM dunglas/frankenphp:1-php8.3 AS frankenphp_upstream
+FROM dunglas/frankenphp:1-php8.4 AS frankenphp_upstream
 
 RUN apt-get update && apt-get -y install \
       curl \