diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 711754c206b..9cc0bb7d98b 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -13931,29 +13931,22 @@ in modules // {
   mitmproxy = buildPythonPackage rec {
     baseName = "mitmproxy";
     name = "${baseName}-${version}";
-    version = "0.14";
+    version = "0.17.1";
 
     src = pkgs.fetchFromGitHub {
       owner = "mitmproxy";
       repo = "mitmproxy";
       rev = "v${version}";
-      sha256 = "1zxw4yviryy0v53vhccgqb7f5d3fga16dy9kp1xwp6b59w0fcc2g";
+      sha256 = "0a50mkvm3zf9cbs0pf6bwy00bhmy4d1l9as8c9m0bgrk6hq7h53p";
     };
 
     propagatedBuildInputs = with self; [
-      pyopenssl pyasn1 urwid pillow lxml flask protobuf netlib click
+      pyopenssl pyasn1 urwid pillow lxml flask protobuf click
       ConfigArgParse pyperclip blinker construct pyparsing html2text tornado
     ];
 
     doCheck = false;
 
-    postInstall = ''
-      for prog in "$out/bin/"*; do
-        wrapProgram "$prog" \
-          --prefix PYTHONPATH : "$PYTHONPATH"
-      done
-    '';
-
     meta = {
       description = ''Man-in-the-middle proxy'';
       homepage = "http://mitmproxy.org/";