diff --git a/pkgs/development/python-modules/exrex/default.nix b/pkgs/development/python-modules/exrex/default.nix
index 0d51a9862ee7..2ef58acc9093 100644
--- a/pkgs/development/python-modules/exrex/default.nix
+++ b/pkgs/development/python-modules/exrex/default.nix
@@ -1,31 +1,35 @@
 { lib
 , buildPythonPackage
 , fetchFromGitHub
-, fetchpatch
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "exrex";
-  version = "unstable-2021-04-22";
+  version = "0.11.0";
+  format = "setuptools";
+
+  disabled = pythonOlder "3.8";
 
   src = fetchFromGitHub {
     owner = "asciimoo";
     repo = "exrex";
-    rev = "9a66706e7582a9cf31c4121629c9035e329bbe21";
-    sha256 = "sha256-g31tHY+LzGxwBmUpSa0DV7ruLfYwmuDg+XyBxMZRa9U=";
+    # https://github.com/asciimoo/exrex/issues/68
+    rev = "239e4da37ff3a66d8b4b398d189299ae295594c3";
+    hash = "sha256-Tn/XIIy2wnob+1FmP9bdD9+gHLQZDofF2c1FqOijKWA=";
   };
 
-  patches = [
-    (fetchpatch {
-      # https://github.com/asciimoo/exrex/pull/65
-      url = "https://github.com/asciimoo/exrex/commit/44712bfb1350a509581a5834d9fa8aebcd9434db.patch";
-      hash = "sha256-thKotSvdVdVjXaG/AhsXmW51FHLOYUeYTYw8SA/k2t4=";
-    })
-  ];
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "version=about['__version__']," "version='${version}',"
+  '';
 
   # Projec thas no released tests
   doCheck = false;
-  pythonImportsCheck = [ "exrex" ];
+
+  pythonImportsCheck = [
+    "exrex"
+  ];
 
   meta = with lib; {
     description = "Irregular methods on regular expressions";
diff --git a/pkgs/development/python-modules/myjwt/default.nix b/pkgs/development/python-modules/myjwt/default.nix
index 807e205eb0d3..a54ab560a235 100644
--- a/pkgs/development/python-modules/myjwt/default.nix
+++ b/pkgs/development/python-modules/myjwt/default.nix
@@ -6,6 +6,7 @@
 , cryptography
 , exrex
 , fetchFromGitHub
+, poetry-core
 , pyopenssl
 , pyperclip
 , pytest-mock
@@ -18,18 +19,28 @@
 
 buildPythonPackage rec {
   pname = "myjwt";
-  version = "1.6.0";
-  format = "setuptools";
+  version = "1.6.1";
+  format = "pyproject";
 
-  disabled = pythonOlder "3.7";
+  disabled = pythonOlder "3.8";
 
   src = fetchFromGitHub {
     owner = "mBouamama";
     repo = "MyJWT";
     rev = "refs/tags/${version}";
-    sha256 = "sha256-A9tsQ6L+y3doL5pJbau3yKnmQtX2IPXWyW/YCLhS7nc=";
+    hash = "sha256-qdDA8DpJ9kAPTvCkQcPBHNlUqxwsS0vAESglvUygXhg=";
   };
 
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace "1.6.0" "${version}" \
+      --replace 'cryptography = "^39.0.2"' 'cryptography = "^39.0.0"'
+  '';
+
+  nativeBuildInputs = [
+    poetry-core
+  ];
+
   propagatedBuildInputs = [
     click
     colorama
@@ -47,11 +58,6 @@ buildPythonPackage rec {
     requests-mock
   ];
 
-  postPatch = ''
-    # Remove all version pinning (E.g., tornado==5.1.1 -> tornado)
-    sed -i -e "s/==[0-9.]*//" requirements.txt
-  '';
-
   pythonImportsCheck = [
     "myjwt"
   ];
@@ -59,6 +65,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "CLI tool for testing vulnerabilities of JSON Web Tokens (JWT)";
     homepage = "https://github.com/mBouamama/MyJWT";
+    changelog = "https://github.com/tyki6/MyJWT/releases/tag/${version}";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ fab ];
     # Build failures