diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5d45586cf43e..3f2c67edf8d4 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5330,7 +5330,8 @@ with pkgs;
   };
 
   exempi = callPackage ../development/libraries/exempi {
-    stdenv = if stdenv.isi686 then gcc6Stdenv else stdenv;
+    stdenv = if stdenv.isi686 then gcc6Stdenv else gcc9Stdenv;
+    boost  = boost15x;
   };
 
   execline = skawarePackages.execline;