diff --git a/.github/workflows/container.yml b/.github/workflows/container.yml
index 468fd45..3e16f61 100644
--- a/.github/workflows/container.yml
+++ b/.github/workflows/container.yml
@@ -7,7 +7,7 @@ on:
       - '**'
 
 env:
-  php_version: 8.2.18
+  php_version: 8.3.6
   unit_version: 1.32.1-1
   composer_version: 2.7.4
   datadog_version: 0.99.1
diff --git a/Dockerfile b/Dockerfile
index 01715b2..0d32014 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG PHP_VERSION=8.2.18
+ARG PHP_VERSION=8.3.6
 ARG UNIT_VERSION=1.32.1-1
 ARG COMPOSER_VERSION=2.7.4