diff --git a/pkgs/build-support/php/build-composer-project.nix b/pkgs/build-support/php/build-composer-project.nix
index 9d5e57e8c482..0fc958a874e9 100644
--- a/pkgs/build-support/php/build-composer-project.nix
+++ b/pkgs/build-support/php/build-composer-project.nix
@@ -79,9 +79,11 @@ let
         composerStrictValidation = previousAttrs.composerStrictValidation or true;
       };
 
-      COMPOSER_CACHE_DIR="/dev/null";
-      COMPOSER_DISABLE_NETWORK="1";
-      COMPOSER_MIRROR_PATH_REPOS="1";
+      env = {
+        COMPOSER_CACHE_DIR = "/dev/null";
+        COMPOSER_DISABLE_NETWORK = "1";
+        COMPOSER_MIRROR_PATH_REPOS = "1";
+      };
 
       meta = previousAttrs.meta or { } // {
         platforms = lib.platforms.all;
diff --git a/pkgs/build-support/php/build-composer-repository.nix b/pkgs/build-support/php/build-composer-repository.nix
index 2f6595eab6fb..38e8510629d7 100644
--- a/pkgs/build-support/php/build-composer-repository.nix
+++ b/pkgs/build-support/php/build-composer-repository.nix
@@ -89,10 +89,12 @@ let
         runHook postInstallCheck
       '';
 
-      COMPOSER_CACHE_DIR = "/dev/null";
-      COMPOSER_MIRROR_PATH_REPOS = "1";
-      COMPOSER_HTACCESS_PROTECT = "0";
-      COMPOSER_DISABLE_NETWORK = "0";
+      env = {
+        COMPOSER_CACHE_DIR = "/dev/null";
+        COMPOSER_MIRROR_PATH_REPOS = "1";
+        COMPOSER_HTACCESS_PROTECT = "0";
+        COMPOSER_DISABLE_NETWORK = "0";
+      };
 
       outputHashMode = "recursive";
       outputHashAlgo = if (finalAttrs ? vendorHash && finalAttrs.vendorHash != "") then null else "sha256";
diff --git a/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix b/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
index bfdc3d4f98d1..21be0c83e8fa 100644
--- a/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
+++ b/pkgs/build-support/php/pkgs/composer-local-repo-plugin.nix
@@ -38,10 +38,12 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     hash = "sha256-edbn07r/Uc1g0qOuVBZBs6N1bMN5kIfA1b4FCufdw5M=";
   };
 
-  COMPOSER_CACHE_DIR = "/dev/null";
-  COMPOSER_MIRROR_PATH_REPOS = "1";
-  COMPOSER_HTACCESS_PROTECT = "0";
-  COMPOSER_DISABLE_NETWORK = "1";
+  env = {
+    COMPOSER_CACHE_DIR = "/dev/null";
+    COMPOSER_MIRROR_PATH_REPOS = "1";
+    COMPOSER_HTACCESS_PROTECT = "0";
+    COMPOSER_DISABLE_NETWORK = "1";
+  };
 
   nativeBuildInputs = [
     makeBinaryWrapper