diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7cc02cb9583..0d30fc3ccc1 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6429,7 +6429,9 @@ with pkgs;
     ocaml = ocaml_4_02;
   };
 
-  framac = callPackage ../development/tools/analysis/frama-c { };
+  framac = callPackage ../development/tools/analysis/frama-c {
+    coq = coq_8_4;
+  };
 
   frame = callPackage ../development/libraries/frame { };
 
@@ -17143,7 +17145,7 @@ with pkgs;
     inherit (ocamlPackages) ocaml findlib lablgtk;
     camlp5 = ocamlPackages.camlp5_transitional;
   };
-  coq = coq_8_4;
+  coq = coq_8_6;
 
   mkCoqPackages_8_4 = self: let callPackage = newScope self; in {
     inherit callPackage;