diff --git a/pkgs/by-name/py/pyhanko-cli/package.nix b/pkgs/by-name/py/pyhanko-cli/package.nix
index b39dd5350d33..f8c4f0c37c45 100644
--- a/pkgs/by-name/py/pyhanko-cli/package.nix
+++ b/pkgs/by-name/py/pyhanko-cli/package.nix
@@ -7,14 +7,14 @@
 }:
 python3Packages.buildPythonApplication (finalAttrs: {
   pname = "pyhanko-cli";
-  version = "0.2.1";
+  version = "0.3.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "MatthiasValvekens";
     repo = "pyhanko";
     tag = "pyhanko-cli/v${finalAttrs.version}";
-    hash = "sha256-UyJ9odchy63CcCkJVtBgraRQuD2fxqCciwLuhN4+8aw=";
+    hash = "sha256-ZBlkp6nhTKEAWxCPDq9NIoOullwWartpU3eL0QIGFpw=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/pkgs/pyhanko-cli";
diff --git a/pkgs/development/python-modules/pyhanko/default.nix b/pkgs/development/python-modules/pyhanko/default.nix
index 32e1e8c3b1f4..b68b80b851a2 100644
--- a/pkgs/development/python-modules/pyhanko/default.nix
+++ b/pkgs/development/python-modules/pyhanko/default.nix
@@ -38,14 +38,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "pyhanko";
-  version = "0.33.0";
+  version = "0.34.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "MatthiasValvekens";
     repo = "pyHanko";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-+576MAbtWFGaPu/HqhdeeRNHi84pLnDaMDa0e/J/CUs=";
+    hash = "sha256-ZBlkp6nhTKEAWxCPDq9NIoOullwWartpU3eL0QIGFpw=";
   };
 
   sourceRoot = "${finalAttrs.src.name}/pkgs/pyhanko";
@@ -145,7 +145,7 @@ buildPythonPackage (finalAttrs: {
       sourceRoot = "${finalAttrs.src.name}/internal/common-test-utils";
       # Include the test pdf/xml files etc. in the build output
       postPatch = ''
-        echo "graft src/test_data" > MANIFEST.in
+        echo "graft src/pyhanko_testing_commons/test_data" > MANIFEST.in
       '';
 
       build-system = [ setuptools ];