diff --git a/nixos/doc/manual/release-notes/rl-2505.section.md b/nixos/doc/manual/release-notes/rl-2505.section.md
index d55b5bfd42a7..10645d55e838 100644
--- a/nixos/doc/manual/release-notes/rl-2505.section.md
+++ b/nixos/doc/manual/release-notes/rl-2505.section.md
@@ -4,7 +4,7 @@
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
 
-- Create the first release note entry in this section!
+- The default PHP version has been updated to 8.3.
 
 <!-- To avoid merge conflicts, consider adding your item at an arbitrary place in the list instead. -->
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 691601e3aa3f..c49b7b3b181d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7439,7 +7439,7 @@ with pkgs;
   # PHP interpreters, packages and extensions.
   #
   # Set default PHP interpreter, extensions and packages
-  php = php82;
+  php = php83;
   phpExtensions = php.extensions;
   phpPackages = php.packages;