diff --git a/.mise.toml b/.mise.toml
index f1e5ba2..d7e6147 100644
--- a/.mise.toml
+++ b/.mise.toml
@@ -1,2 +1,2 @@
 [tools]
-php = "8.4"
+php = "8.5.8"
diff --git a/docker/php/Dockerfile b/docker/php/Dockerfile
index 8fd1cb4..09e8762 100644
--- a/docker/php/Dockerfile
+++ b/docker/php/Dockerfile
@@ -1,7 +1,7 @@
 # =============================================================================
 # Base: shared extensions for all stages
 # =============================================================================
-FROM php:8.4-fpm AS base
+FROM php:8.5-fpm@sha256:0dc450d0a0e81ba501973b8e303f5d45af2ed989e08730f597d8fc07fb289efd AS base
 RUN apt-get update && apt-get install -y libpq-dev git unzip \
     && docker-php-ext-install pdo_pgsql opcache \
     && rm -rf /var/lib/apt/lists/*