diff --git a/pkgs/development/python-modules/uplc/default.nix b/pkgs/development/python-modules/uplc/default.nix
index dd8e8cbea634..e9a2874b17c0 100644
--- a/pkgs/development/python-modules/uplc/default.nix
+++ b/pkgs/development/python-modules/uplc/default.nix
@@ -8,14 +8,16 @@
   setuptools,
   poetry-core,
   frozendict,
+  cbor2WithoutCExtensions,
   cbor2,
   rply,
   pycardano,
+  uplc,
 }:
 
 buildPythonPackage rec {
   pname = "uplc";
-  version = "1.0.7";
+  version = "1.0.10";
 
   format = "pyproject";
 
@@ -23,7 +25,7 @@ buildPythonPackage rec {
     owner = "OpShin";
     repo = "uplc";
     tag = version;
-    hash = "sha256-xK2k0XLybWqyP5Qa2Oby8YBgiiswR++yVK7NPgpdSa0=";
+    hash = "sha256-Owo4W4jChrdYnz11BbWQdm2SiwFwOJlqjYutuRyjpxs=";
   };
 
   propagatedBuildInputs = [
@@ -37,8 +39,17 @@ buildPythonPackage rec {
     python-secp256k1-cardano
   ];
 
+  # Support cbor2 without C extensions
+  postPatch = lib.optionalString (!cbor2.withCExtensions) ''
+    substituteInPlace uplc/ast.py --replace-fail 'from _cbor2' 'from cbor2'
+  '';
+
   pythonImportsCheck = [ "uplc" ];
 
+  passthru.tests.withoutCExtensions = uplc.override {
+    cbor2 = cbor2WithoutCExtensions;
+  };
+
   meta = with lib; {
     description = "Python implementation of untyped plutus language core";
     homepage = "https://github.com/OpShin/uplc";