diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f96e31ed0b0..212224f18df 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -14479,6 +14479,7 @@ in
   vte_290 = callPackage ../development/libraries/vte/2.90.nix { };
 
   vtk = callPackage ../development/libraries/vtk {
+    stdenv = gcc8Stdenv;
     inherit (darwin) libobjc;
     inherit (darwin.apple_sdk.libs) xpc;
     inherit (darwin.apple_sdk.frameworks) Cocoa CoreServices DiskArbitration
@@ -23600,7 +23601,9 @@ in
 
   alliance = callPackage ../applications/science/electronics/alliance { };
 
-  ants = callPackage ../applications/science/biology/ants { };
+  ants = callPackage ../applications/science/biology/ants {
+    stdenv = gcc8Stdenv;
+  };
 
   aragorn = callPackage ../applications/science/biology/aragorn { };