diff --git a/Makefile b/Makefile
index 7471024..5475810 100644
--- a/Makefile
+++ b/Makefile
@@ -28,7 +28,8 @@ clean-build:
 
 .PHONY: clean-deps
 clean-deps:
-	@rm -rf deps/
+	@juvix clean
+	@(cd tests && exec juvix clean)
 
 .PHONY: clean
 clean: clean-deps clean-build
diff --git a/Package.juvix b/Package.juvix
index b83fde9..7226ecd 100644
--- a/Package.juvix
+++ b/Package.juvix
@@ -1,9 +1,9 @@
 module Package;
 
-import PackageDescription.V1 open;
+import PackageDescription.V2 open;
 
 package : Package :=
   defaultPackage
     {name := "test";
-     version := mkVersion 0 7 0;
-     dependencies := [github "anoma" "juvix-stdlib" "v0.0.1"]};
+     version := mkVersion 0 8 0;
+     dependencies := [github "anoma" "juvix-stdlib" "v0.1.0"]};
diff --git a/Test/JuvixUnit.juvix b/Test/JuvixUnit.juvix
index 8257618..171217e 100644
--- a/Test/JuvixUnit.juvix
+++ b/Test/JuvixUnit.juvix
@@ -1,7 +1,6 @@
 module Test.JuvixUnit;
 
-import Stdlib.Prelude open hiding {fail};
-
+import Test.Prelude open;
 import Stdlib.Debug.Fail as Fail;
 
 type Assertion :=
diff --git a/Test/Prelude.juvix b/Test/Prelude.juvix
new file mode 100644
index 0000000..236ad28
--- /dev/null
+++ b/Test/Prelude.juvix
@@ -0,0 +1,10 @@
+module Test.Prelude;
+
+import Juvix.Builtin.V1 open public;
+import Stdlib.Data.List.Base open using {any; foldr} public;
+import Stdlib.Data.Bool.Base open using {if; not} public;
+import Stdlib.Data.Maybe.Base open using {maybe} public;
+import Stdlib.Function open public;
+import Stdlib.System.IO.Base open public;
+import Stdlib.System.IO.String open public;
+import Stdlib.Trait.Eq open public;
diff --git a/juvix.lock.yaml b/juvix.lock.yaml
index c7e1d26..12487fa 100644
--- a/juvix.lock.yaml
+++ b/juvix.lock.yaml
@@ -1,9 +1,11 @@
 # This file was autogenerated by Juvix version 0.5.4.
 # Do not edit this file manually.
 
+version: 2
+checksum: bb2c92390bf49873ae476fb3e816d2f9e2e86dbec0e584a0ccfe552ec0f2bda1
 dependencies:
 - git:
     name: anoma_juvix-stdlib
-    ref: f68b0614ad695eaa13ead42f3466e0a78219f826
+    ref: 183d4e9329a648b339ebecf2122b3e9621c99ee8
     url: https://github.com/anoma/juvix-stdlib
   dependencies: []
diff --git a/tests/Package.juvix b/tests/Package.juvix
index 0416bb0..75766ee 100644
--- a/tests/Package.juvix
+++ b/tests/Package.juvix
@@ -1,8 +1,10 @@
 module Package;
 
-import PackageDescription.V1 open;
+import PackageDescription.V2 open;
 
 package : Package :=
   defaultPackage
     {name := "tests";
-     dependencies := [defaultStdlib; path "../"]};
+     dependencies := [ path "../"
+                     ; github "anoma" "juvix-stdlib" "v0.1.0"
+                     ]};
diff --git a/tests/juvix.lock.yaml b/tests/juvix.lock.yaml
index 5f73d82..a4690e6 100644
--- a/tests/juvix.lock.yaml
+++ b/tests/juvix.lock.yaml
@@ -1,13 +1,18 @@
 # This file was autogenerated by Juvix version 0.5.4.
 # Do not edit this file manually.
 
+version: 2
+checksum: bc44ac3a4265ab42f42880ebe71560cce855411ca98574181715b96d34543bb8
 dependencies:
-- path: .juvix-build/stdlib/
-  dependencies: []
 - path: ../
   dependencies:
   - git:
       name: anoma_juvix-stdlib
-      ref: f68b0614ad695eaa13ead42f3466e0a78219f826
+      ref: 183d4e9329a648b339ebecf2122b3e9621c99ee8
       url: https://github.com/anoma/juvix-stdlib
     dependencies: []
+- git:
+    name: anoma_juvix-stdlib
+    ref: 183d4e9329a648b339ebecf2122b3e9621c99ee8
+    url: https://github.com/anoma/juvix-stdlib
+  dependencies: []