diff --git a/pkgs/development/python-modules/can/default.nix b/pkgs/development/python-modules/can/default.nix
index 28dffc369720..c3d36290168f 100644
--- a/pkgs/development/python-modules/can/default.nix
+++ b/pkgs/development/python-modules/can/default.nix
@@ -12,11 +12,12 @@
 , pythonOlder
 , typing-extensions
 , wrapt
+, uptime
 }:
 
 buildPythonPackage rec {
   pname = "can";
-  version = "4.0.0";
+  version = "4.1.0";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -24,30 +25,41 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "hardbyte";
     repo = "python-can";
-    rev = "refs/tags/${version}";
-    hash = "sha256-/z7zBfVbO7x4UtzWOXolH2YrtYWgsvRLObWwz8sqOEc=";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-jNy47SapujTF3ReJtIbwUY53IftIH4cXZjkzHrnZMFQ=";
   };
 
+  postPatch = ''
+    substituteInPlace tox.ini \
+      --replace " --cov=can --cov-config=tox.ini --cov-report=lcov --cov-report=term" ""
+  '';
+
   propagatedBuildInputs = [
     msgpack
     packaging
-    pyserial
     typing-extensions
     wrapt
   ];
 
+  passthru.optional-dependencies = {
+    serial = [
+      pyserial
+    ];
+    seeedstudio = [
+      pyserial
+    ];
+    pcan = [
+      uptime
+    ];
+  };
+
   checkInputs = [
     future
     hypothesis
     parameterized
     pytest-timeout
     pytestCheckHook
-  ];
-
-  postPatch = ''
-    substituteInPlace tox.ini \
-      --replace " --cov=can --cov-config=tox.ini --cov-report=xml --cov-report=term" ""
-  '';
+  ] ++ passthru.optional-dependencies.serial;
 
   disabledTestPaths = [
     # We don't support all interfaces