diff --git a/nixpacks.toml b/nixpacks.toml
index b3072a9..afd8bc2 100644
--- a/nixpacks.toml
+++ b/nixpacks.toml
@@ -16,7 +16,7 @@ nixPkgs = [
 
 [phases.install]
 cmds = [
-  "curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && composer install --no-dev --optimize-autoloader --no-interaction",
+  "curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer && php /usr/local/bin/composer install --no-dev --optimize-autoloader --no-interaction",
   "npm ci"
 ]