diff --git a/pkgs/applications/networking/instant-messengers/zulip-term/default.nix b/pkgs/applications/networking/instant-messengers/zulip-term/default.nix
index 931f95158354..683c1069b394 100644
--- a/pkgs/applications/networking/instant-messengers/zulip-term/default.nix
+++ b/pkgs/applications/networking/instant-messengers/zulip-term/default.nix
@@ -8,13 +8,13 @@
 python3.pkgs.buildPythonApplication rec {
   pname = "zulip-term";
   version = "0.7.0";
+  pyproject = true;
 
-  # no tests on PyPI
   src = fetchFromGitHub {
     owner = "zulip";
     repo = "zulip-terminal";
-    rev = version;
-    sha256 = "sha256-ZouUU4p1FSGMxPuzDo5P971R+rDXpBdJn2MqvkJO+Fw=";
+    rev = "refs/tags/${version}";
+    hash = "sha256-ZouUU4p1FSGMxPuzDo5P971R+rDXpBdJn2MqvkJO+Fw=";
   };
 
   patches = [
@@ -50,6 +50,7 @@ python3.pkgs.buildPythonApplication rec {
   meta = with lib; {
     description = "Zulip's official terminal client";
     homepage = "https://github.com/zulip/zulip-terminal";
+    changelog = "https://github.com/zulip/zulip-terminal/releases/tag/0.7.0";
     license = licenses.asl20;
     maintainers = with maintainers; [ dotlambda ];
   };
diff --git a/pkgs/development/python-modules/zfec/default.nix b/pkgs/development/python-modules/zfec/default.nix
index fc3b710919bc..1e135da34b3a 100644
--- a/pkgs/development/python-modules/zfec/default.nix
+++ b/pkgs/development/python-modules/zfec/default.nix
@@ -1,8 +1,9 @@
 { lib
 , buildPythonPackage
 , fetchPypi
-, setuptools
+, hypothesis
 , pyutil
+, setuptools
 , twisted
 }:
 
@@ -20,17 +21,26 @@ buildPythonPackage rec {
     setuptools
   ];
 
-  propagatedBuildInputs = [ pyutil ];
+  propagatedBuildInputs = [
+    pyutil
+  ];
 
-  nativeCheckInputs = [ twisted ];
+  nativeCheckInputs = [
+    hypothesis
+    twisted
+  ];
 
-  checkPhase = "trial zfec";
+  checkPhase = ''
+    trial zfec
+  '';
 
-  pythonImportsCheck = [ "zfec" ];
+  pythonImportsCheck = [
+    "zfec"
+  ];
 
   meta = with lib; {
     homepage = "https://github.com/tahoe-lafs/zfec";
-    description = "Zfec, a fast erasure codec which can be used with the command-line, C, Python, or Haskell";
+    description = "Fast erasure codec which can be used with the command-line, C, Python, or Haskell";
     longDescription = ''
       Fast, portable, programmable erasure coding a.k.a. "forward
       error correction": the generation of redundant blocks of