diff --git a/pkgs/development/python-modules/poetry/default.nix b/pkgs/development/python-modules/poetry/default.nix
index 44621d353830..2828cb6b3f97 100644
--- a/pkgs/development/python-modules/poetry/default.nix
+++ b/pkgs/development/python-modules/poetry/default.nix
@@ -32,6 +32,7 @@ let
 in buildPythonPackage rec {
   pname = "poetry";
   version = "1.0.3";
+  format = "pyproject";
 
   src = fetchPypi {
     inherit pname version;
@@ -42,12 +43,10 @@ in buildPythonPackage rec {
     substituteInPlace pyproject.toml \
      --replace "pyrsistent = \"^0.14.2\"" "pyrsistent = \"^0.15.0\"" \
      --replace "requests-toolbelt = \"^0.8.0\"" "requests-toolbelt = \"^0.9.0\"" \
-     --replace "importlib-metadata = {version = \"~1.1.3\", python = \"<3.8\"}" \
-       "importlib-metadata = {version = \"~1.3.0\", python = \"<3.8\"}"
+     --replace 'importlib-metadata = {version = "~1.1.3", python = "<3.8"}' \
+       'importlib-metadata = {version = ">=1.3,<2", python = "<3.8"}'
   '';
 
-  format = "pyproject";
-
   nativeBuildInputs = [ intreehooks ];
 
   propagatedBuildInputs = [