diff --git a/pkgs/development/python-modules/fastcore/default.nix b/pkgs/development/python-modules/fastcore/default.nix
index f78b5f2b15f2..9d4b9b346e31 100644
--- a/pkgs/development/python-modules/fastcore/default.nix
+++ b/pkgs/development/python-modules/fastcore/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "fastcore";
-  version = "1.8.5";
+  version = "1.8.6";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = "fastai";
     repo = "fastcore";
     tag = version;
-    hash = "sha256-Osjpt/oxw5LAVUvhPg2cICSeKaLrOdppNT0jqHz9HyA=";
+    hash = "sha256-m/22tTIysVFgNWUUWKC/1TV/dkEki8dDACb0XvKayAw=";
   };
 
   build-system = [ setuptools ];