diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ff3444cd47b0..4f5c62ac0bd5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -28271,7 +28271,7 @@ in
   undervolt = callPackage ../os-specific/linux/undervolt { };
 
   alibuild = callPackage ../development/tools/build-managers/alibuild {
-    python = python27;
+    python = python3;
   };
 
   tsung = callPackage ../applications/networking/tsung {};