diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index ca857afc5eea..615ac0c3530e 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -12080,7 +12080,9 @@ in
 
   gperftools = callPackage ../development/libraries/gperftools { };
 
-  grab-site = callPackage ../tools/backup/grab-site { };
+  grab-site = callPackage ../tools/backup/grab-site {
+    python3Packages = python37Packages;
+  };
 
   grib-api = callPackage ../development/libraries/grib-api { };