diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index a35e9f7c392..95cd6fc5154 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1576,4 +1576,12 @@ self: super: {
     extraPrefix = "";
   }));
 
+  # 2020-06-24: Jailbreaking because of restrictive test dep bounds
+  # Upstream issue: https://github.com/kowainik/trial/issues/62
+  trial = doJailbreak super.trial;
+
+  # 2020-06-24: Tests are broken in hackage distribution.
+  # See: https://github.com/kowainik/stan/issues/316
+  stan = dontCheck super.stan;
+
 } // import ./configuration-tensorflow.nix {inherit pkgs haskellLib;} self super
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
index cdb5795de4b..7a3e3f82a7d 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix.yaml
@@ -4792,7 +4792,6 @@ broken-packages:
   - extensible-data
   - extensible-effects-concurrent
   - extensible-skeleton
-  - extensions
   - external-sort
   - Extra
   - extract-dependencies
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 65db8a8c573..aad59aa92ec 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -84727,8 +84727,6 @@ self: {
        ];
        description = "Parse Haskell Language Extensions";
        license = stdenv.lib.licenses.mpl20;
-       hydraPlatforms = stdenv.lib.platforms.none;
-       broken = true;
      }) {};
 
   "external-sort" = callPackage