diff --git a/default.nix b/default.nix
index 0d1c243..93a43ae 100644
--- a/default.nix
+++ b/default.nix
@@ -194,13 +194,7 @@ let
             python = py;
           };
 
-          postPatch = (passedAttrs.postPatch or "") + ''
-            # Tell poetry not to resolve the path dependencies. Any version is
-            # fine !
-            yj -tj < pyproject.toml | ${python.interpreter} ${./pyproject-without-path.py} > pyproject.json
-            yj -jt < pyproject.json > pyproject.toml
-            rm pyproject.json
-          '';
+          postPatch = (passedAttrs.postPatch or "") + poetryLib.removeTOMLPathDependencies python;
 
           meta = meta // {
             inherit (pyProject.tool.poetry) description homepage;
diff --git a/lib.nix b/lib.nix
index 68d854f..7081fbc 100644
--- a/lib.nix
+++ b/lib.nix
@@ -93,6 +93,14 @@ let
         [ pythonPackages.${drvAttr} or (throw "unsupported build system ${buildSystem}") ]
       );
 
+  removeTOMLPathDependencies = python: ''
+    # Tell poetry not to resolve the path dependencies. Any version is
+    # fine !
+    ${pkgs.yj}/bin/yj -tj < pyproject.toml | ${python.interpreter} ${./pyproject-without-path.py} > pyproject.json
+    ${pkgs.yj}/bin/yj -jt < pyproject.json > pyproject.toml
+    rm pyproject.json
+  '';
+
 in
 {
   inherit
@@ -101,5 +109,6 @@ in
     isCompatible
     readTOML
     getBuildSystemPkgs
+    removeTOMLPathDependencies
     ;
 }
diff --git a/mk-poetry-dep.nix b/mk-poetry-dep.nix
index ab49f5d..6c724ed 100644
--- a/mk-poetry-dep.nix
+++ b/mk-poetry-dep.nix
@@ -106,7 +106,9 @@ pythonPackages.callPackage (
         # Stripping pre-built wheels lead to `ELF load command address/offset not properly aligned`
         dontStrip = format == "wheel";
 
-        nativeBuildInputs = if (!isSource && (getManyLinuxDeps fileInfo.name).str != null) then [ autoPatchelfHook ] else [];
+        nativeBuildInputs = (if (!isSource && (getManyLinuxDeps fileInfo.name).str != null) then [ autoPatchelfHook ] else [])
+        ++ lib.optional (isLocal) pkgs.yj;
+
         buildInputs = (
           baseBuildInputs
           ++ lib.optional (!isSource) (getManyLinuxDeps fileInfo.name).pkg
@@ -118,6 +120,8 @@ pythonPackages.callPackage (
           # but dependencies try to access Django
           builtins.map (n: pythonPackages.${lib.toLower n}) (builtins.attrNames dependencies);
 
+        postPatch = (args.postPatch or "") + lib.optionalString isLocal (poetryLib.removeTOMLPathDependencies python);
+
         meta = {
           broken = ! isCompatible python.pythonVersion python-versions;
           license = [];