diff --git a/pkgs/build-support/php/pkgs/composer-phar.nix b/pkgs/build-support/php/pkgs/composer-phar.nix
index b07c25beec55..82dcdeaf535d 100644
--- a/pkgs/build-support/php/pkgs/composer-phar.nix
+++ b/pkgs/build-support/php/pkgs/composer-phar.nix
@@ -11,6 +11,8 @@
   xz,
   version,
   pharHash,
+  installShellFiles,
+  stdenv,
 }:
 
 stdenvNoCC.mkDerivation (finalAttrs: {
@@ -24,7 +26,10 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
   dontUnpack = true;
 
-  nativeBuildInputs = [ makeBinaryWrapper ];
+  nativeBuildInputs = [
+    makeBinaryWrapper
+    installShellFiles
+  ];
 
   installPhase = ''
     runHook preInstall
@@ -46,13 +51,19 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
+  postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
+    installShellCompletion --cmd composer \
+      --bash <($out/bin/composer completion bash)
+  '';
+
   meta = {
     changelog = "https://github.com/composer/composer/releases/tag/${finalAttrs.version}";
     description = "Dependency Manager for PHP, shipped from the PHAR file";
     homepage = "https://getcomposer.org/";
     license = lib.licenses.mit;
     mainProgram = "composer";
-    maintainers = with lib.maintainers; [ drupol ];
+    maintainers = [ lib.maintainers.patka ];
+    teams = [ lib.teams.php ];
     platforms = lib.platforms.all;
   };
 })
diff --git a/pkgs/development/php-packages/composer/default.nix b/pkgs/development/php-packages/composer/default.nix
index 6dd3d98830db..986347de7f4c 100644
--- a/pkgs/development/php-packages/composer/default.nix
+++ b/pkgs/development/php-packages/composer/default.nix
@@ -16,13 +16,13 @@
 
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "composer";
-  version = "2.8.5";
+  version = "2.8.11";
 
   # Hash used by ../../../build-support/php/pkgs/composer-phar.nix to
   # use together with the version from this package to keep the
   # bootstrap phar file up-to-date together with the end user composer
   # package.
-  passthru.pharHash = "sha256-nO8YIS4iI1GutHa4HeeypTg/d1M2R0Rnv1x8z+hKsMw=";
+  passthru.pharHash = "sha256-JXqWnpqdJ+DkXP6VSDXBenYDO6hKOI4PRy24Pt7WWos=";
 
   composer = callPackage ../../../build-support/php/pkgs/composer-phar.nix {
     inherit (finalAttrs) version;
@@ -33,7 +33,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     owner = "composer";
     repo = "composer";
     tag = finalAttrs.version;
-    hash = "sha256-/E/fXh+jefPwzsADpmGyrJ+xqW5CSPNok0DVLD1KZDY=";
+    hash = "sha256-ufkrrCnIwJHtAsjKdaFzlJkCH0i7Tm17+eIqgSqDwlE=";
   };
 
   nativeBuildInputs = [ makeBinaryWrapper ];
@@ -87,7 +87,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
 
     outputHashMode = "recursive";
     outputHashAlgo = "sha256";
-    outputHash = "sha256-UcMB0leKqD8cXeExXpjDgPvF8pfhGXnCR0EN4FVWouw=";
+    outputHash = "sha256-elh3zgN4DJK0lY6TDRGWfBjmnWZzy7s1sMWe34RsLEE=";
   };
 
   installPhase = ''