diff --git a/pkgs/development/python-modules/pyaml/default.nix b/pkgs/development/python-modules/pyaml/default.nix
index 8642c9affbdc..cbab9bacfb81 100644
--- a/pkgs/development/python-modules/pyaml/default.nix
+++ b/pkgs/development/python-modules/pyaml/default.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "pyaml";
-  version = "21.8.3";
+  version = "21.10.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-oWNtY8R2MooHIT0LcRG7Y1cPGrij7d9gUiYwJQwj2XU=";
+    sha256 = "c6519fee13bf06e3bb3f20cacdea8eba9140385a7c2546df5dbae4887f768383";
   };
 
   propagatedBuildInputs = [