diff --git a/pkgs/development/interpreters/python/default.nix b/pkgs/development/interpreters/python/default.nix
index abed1fe0a685..5b09e4bf97b3 100644
--- a/pkgs/development/interpreters/python/default.nix
+++ b/pkgs/development/interpreters/python/default.nix
@@ -46,10 +46,10 @@ in {
     sourceVersion = {
       major = "3";
       minor = "9";
-      patch = "20";
+      patch = "21";
       suffix = "";
     };
-    hash = "sha256-aygSee/YUpTS1pk+FzmDpXRkwBM5Vvu7VTbslka+rww=";
+    hash = "sha256-MSb1lZLJsNeYWEdV8r97CB+hyjXOem/qmAEI11KgW7E=";
     inherit passthruFun;
   };
 
@@ -58,10 +58,10 @@ in {
     sourceVersion = {
       major = "3";
       minor = "10";
-      patch = "15";
+      patch = "16";
       suffix = "";
     };
-    hash = "sha256-qrCVCBdzUXJgGHmHLZN8HkkopXxAmuAjaew9kdzOvnk=";
+    hash = "sha256-v7JJYJmQIgSRobkoUKBxNe0IMeQXOM9oHWPPAbKo+9E=";
     inherit passthruFun;
   };