diff --git a/integration-tests/allow-apply-all/default.nix b/integration-tests/allow-apply-all/default.nix
index bed21a5..5afd020 100644
--- a/integration-tests/allow-apply-all/default.nix
+++ b/integration-tests/allow-apply-all/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix }:
+{ pkgs }:
 
 let
   tools = pkgs.callPackage ../tools.nix {
diff --git a/integration-tests/apply-local/default.nix b/integration-tests/apply-local/default.nix
index c7ed099..a5345e6 100644
--- a/integration-tests/apply-local/default.nix
+++ b/integration-tests/apply-local/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix }:
+{ pkgs }:
 
 let
   tools = pkgs.callPackage ../tools.nix {
diff --git a/integration-tests/apply/default.nix b/integration-tests/apply/default.nix
index 366e5cb..53ff97d 100644
--- a/integration-tests/apply/default.nix
+++ b/integration-tests/apply/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix
+{ pkgs
 , evaluator ? "chunked"
 }:
 
diff --git a/integration-tests/build-on-target/default.nix b/integration-tests/build-on-target/default.nix
index 0e29754..f52f441 100644
--- a/integration-tests/build-on-target/default.nix
+++ b/integration-tests/build-on-target/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix }:
+{ pkgs }:
 
 let
   tools = pkgs.callPackage ../tools.nix {
diff --git a/integration-tests/default.nix b/integration-tests/default.nix
index 5472b7d..4fdaa39 100644
--- a/integration-tests/default.nix
+++ b/integration-tests/default.nix
@@ -1,14 +1,18 @@
+{ pkgs ? import ./nixpkgs.nix
+, pkgsStable ? import ./nixpkgs-stable.nix
+}:
+
 {
-  apply = import ./apply {};
-  apply-streaming = import ./apply { evaluator = "streaming"; };
-  apply-local = import ./apply-local {};
-  build-on-target = import ./build-on-target {};
-  exec = import ./exec {};
-  flakes = import ./flakes {};
-  flakes-streaming = import ./flakes { evaluator = "streaming"; };
-  parallel = import ./parallel {};
+  apply = import ./apply { inherit pkgs; };
+  apply-streaming = import ./apply { inherit pkgs; evaluator = "streaming"; };
+  apply-local = import ./apply-local { inherit pkgs; };
+  build-on-target = import ./build-on-target { inherit pkgs; };
+  exec = import ./exec { inherit pkgs; };
+  flakes = import ./flakes { inherit pkgs; };
+  flakes-streaming = import ./flakes { inherit pkgs; evaluator = "streaming"; };
+  parallel = import ./parallel { inherit pkgs; };
 
-  allow-apply-all = import ./allow-apply-all {};
+  allow-apply-all = import ./allow-apply-all { inherit pkgs; };
 
-  apply-stable = import ./apply { pkgs = import ./nixpkgs-stable.nix; };
+  apply-stable = import ./apply { pkgs = pkgsStable; };
 }
diff --git a/integration-tests/exec/default.nix b/integration-tests/exec/default.nix
index 99916c0..23e1823 100644
--- a/integration-tests/exec/default.nix
+++ b/integration-tests/exec/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix }:
+{ pkgs }:
 
 let
   tools = pkgs.callPackage ../tools.nix {};
diff --git a/integration-tests/flakes/default.nix b/integration-tests/flakes/default.nix
index 74fb265..2f3f3c7 100644
--- a/integration-tests/flakes/default.nix
+++ b/integration-tests/flakes/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix
+{ pkgs
 , evaluator ? "chunked"
 }:
 
diff --git a/integration-tests/parallel/default.nix b/integration-tests/parallel/default.nix
index 1c01e45..70434b1 100644
--- a/integration-tests/parallel/default.nix
+++ b/integration-tests/parallel/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import ../nixpkgs.nix }:
+{ pkgs }:
 
 let
   tools = pkgs.callPackage ../tools.nix {};