diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 122042072755..739ed0ce78d4 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4734,11 +4734,11 @@ in {
   };
 
   cffi = if isPyPy then null else buildPythonPackage rec {
-    name = "cffi-1.7.0";
+    name = "cffi-1.9.1";
 
     src = pkgs.fetchurl {
       url = "mirror://pypi/c/cffi/${name}.tar.gz";
-      sha256 = "1pv0pf38h375r581zyckb1d2phcgkszsx2n6354g6qc3zmmdvmbf";
+      sha256 = "563e0bd53fda03c151573217b3a49b3abad8813de9dd0632e10090f6190fdaf8";
     };
 
     propagatedBuildInputs = with self; [ pkgs.libffi pycparser ];