diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 40a690c130f6..fd89e022dcc9 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -226,7 +226,9 @@ with pkgs;
 
   anders = callPackage ../applications/science/logic/anders { };
 
-  ankisyncd = callPackage ../servers/ankisyncd { };
+  ankisyncd = callPackage ../servers/ankisyncd {
+    python3 = python39;
+  };
 
   ani-cli = callPackage ../applications/video/ani-cli { };
 
@@ -32499,7 +32501,7 @@ with pkgs;
 
   angband = callPackage ../games/angband { };
 
-  anki = python3Packages.callPackage ../games/anki {
+  anki = python39Packages.callPackage ../games/anki {
     inherit (darwin.apple_sdk.frameworks) CoreAudio;
   };
   anki-bin = callPackage ../games/anki/bin.nix { buildFHSUserEnv = buildFHSUserEnvBubblewrap; };