diff --git a/pkgs/development/python-modules/socksio/default.nix b/pkgs/development/python-modules/socksio/default.nix
index ad0e8e2e6c07..fb767db631d8 100644
--- a/pkgs/development/python-modules/socksio/default.nix
+++ b/pkgs/development/python-modules/socksio/default.nix
@@ -1,5 +1,6 @@
 { lib
 , buildPythonPackage
+, fetchpatch
 , fetchPypi
 , pythonAtLeast
 , flit-core
@@ -19,6 +20,15 @@ buildPythonPackage {
     hash = "sha256-+IvrPaW1w4uYkEad5n0MsPnUlLeLEGyhhF+WwQuRxKw=";
   };
 
+  patches = [
+    # https://github.com/sethmlarson/socksio/pull/61
+    (fetchpatch {
+      name = "unpin-flit-core.patch";
+      url = "https://github.com/sethmlarson/socksio/commit/5c50fd76e7459bb822ff8f712172a78e21b8dd04.patch";
+      hash = "sha256-VVUzFvF2KCXXkCfCU5xu9acT6OLr+PlQQPeVGONtU4A=";
+    })
+  ];
+
   nativeBuildInputs = [
     flit-core
   ];