diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 245292fb10f..461c70f174a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -774,9 +774,9 @@ let
 
   gnupg = callPackage ../tools/security/gnupg { };
 
-  gnupg2_1 = callPackage ../tools/security/gnupg/git.nix {
+  gnupg2_1 = lowPrio (callPackage ../tools/security/gnupg/git.nix {
     libassuan = libassuan2_1;
-  };
+  });
 
   gnuplot = callPackage ../tools/graphics/gnuplot {
     texLive = null;