diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index a0ada98f1bbb..672ef3aea83d 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5023,7 +5023,7 @@ let
 
   php56 = callPackage ../development/interpreters/php/5.6.nix { };
 
-  php70 = callPackage ../development/interpreters/php/7.0.nix { };
+  php70 = lowPrio (callPackage ../development/interpreters/php/7.0.nix { });
 
   picoc = callPackage ../development/interpreters/picoc {};