diff --git a/pkgs/development/python-modules/schemdraw/default.nix b/pkgs/development/python-modules/schemdraw/default.nix
index 0bf09e59751c..0b110511c70b 100644
--- a/pkgs/development/python-modules/schemdraw/default.nix
+++ b/pkgs/development/python-modules/schemdraw/default.nix
@@ -11,20 +11,21 @@
   ziamath,
   pytestCheckHook,
   nbval,
+  writableTmpDirAsHomeHook,
 }:
 
 buildPythonPackage rec {
   pname = "schemdraw";
-  version = "0.19";
+  version = "0.20";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "cdelker";
-    repo = pname;
-    rev = version;
-    hash = "sha256-vqEHcazE5DNHr0FceOWLqq+RZmMK5ovHDVjy/2wbTJU=";
+    repo = "schemdraw";
+    tag = version;
+    hash = "sha256-mt1XTrUH570zrJpCFo0jORAE/jo7H2T7sKpIskYw8bk=";
   };
 
   build-system = [ setuptools ];
@@ -47,6 +48,7 @@ buildPythonPackage rec {
     latex2mathml
     ziafont
     ziamath
+    writableTmpDirAsHomeHook
   ];
 
   # Strip out references to unfree fonts from the test suite
diff --git a/pkgs/development/python-modules/ziafont/default.nix b/pkgs/development/python-modules/ziafont/default.nix
index 98a46812f7ee..17990e64a151 100644
--- a/pkgs/development/python-modules/ziafont/default.nix
+++ b/pkgs/development/python-modules/ziafont/default.nix
@@ -6,26 +6,28 @@
   setuptools,
   pytestCheckHook,
   nbval,
+  writableTmpDirAsHomeHook,
   fetchurl,
 }:
 buildPythonPackage rec {
   pname = "ziafont";
-  version = "0.9";
+  version = "0.10";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "cdelker";
     repo = "ziafont";
     tag = version;
-    hash = "sha256-S7IDL3ItP14/GrCUtSTT+JWuqRAY/Po0Kerq8mggDdg=";
+    hash = "sha256-tDwl+2EChzBDCFcZW71r4eSKyazlJSv7tRX6soPNSuY=";
   };
 
   build-system = [ setuptools ];
 
   nativeCheckInputs = [
     pytestCheckHook
+    writableTmpDirAsHomeHook
     nbval
   ];
 
diff --git a/pkgs/development/python-modules/ziamath/default.nix b/pkgs/development/python-modules/ziamath/default.nix
index a74411d8afd5..97d6d45ce06a 100644
--- a/pkgs/development/python-modules/ziamath/default.nix
+++ b/pkgs/development/python-modules/ziamath/default.nix
@@ -8,20 +8,21 @@
   pytestCheckHook,
   nbval,
   latex2mathml,
+  writableTmpDirAsHomeHook,
   fetchurl,
 }:
 buildPythonPackage rec {
   pname = "ziamath";
-  version = "0.11";
+  version = "0.12";
   pyproject = true;
 
-  disabled = pythonOlder "3.8";
+  disabled = pythonOlder "3.9";
 
   src = fetchFromGitHub {
     owner = "cdelker";
     repo = "ziamath";
     tag = version;
-    hash = "sha256-DLpbidQEeQVKxGCbS2jeeCvmVK9ElDIDQMj5bh/x7/Q=";
+    hash = "sha256-ShR9O170Q26l6XHSe2CO4bEuQm4JNOxiPZ2kbKDLNEU=";
   };
 
   build-system = [ setuptools ];
@@ -32,6 +33,7 @@ buildPythonPackage rec {
     pytestCheckHook
     nbval
     latex2mathml
+    writableTmpDirAsHomeHook
   ];
 
   preCheck =