diff --git a/pkgs/development/python-modules/fastavro/default.nix b/pkgs/development/python-modules/fastavro/default.nix
index 0bc1246eb326..935eefa5182f 100644
--- a/pkgs/development/python-modules/fastavro/default.nix
+++ b/pkgs/development/python-modules/fastavro/default.nix
@@ -15,14 +15,14 @@
 
 buildPythonPackage rec {
   pname = "fastavro";
-  version = "1.4.4";
+  version = "1.4.9";
 
   disabled = pythonOlder "3.6";
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = version;
-    sha256 = "1sf8nqifwp0cggk59s22ygj3rm1nysa8b91xl8bpv2knqyjy1q32";
+    sha256 = "0af6d67s6mi9ylqla8nga6cj4y0y4gp3l2q68br2mrdyivkml0g0";
   };
 
   preBuild = ''