diff --git a/src/Network/OAuth2/JWT.hs b/src/Network/OAuth2/JWT.hs
index 842ab6a..5397c3c 100644
--- a/src/Network/OAuth2/JWT.hs
+++ b/src/Network/OAuth2/JWT.hs
@@ -18,8 +18,6 @@ import Data.Typeable
 import qualified Data.Aeson as A (FromJSON(..), ToJSON(..), ToJSONKey(..), FromJSON(..), FromJSONKey(..), Value(..))
 -- containers
 import qualified Data.Map.Strict as M (Map, lookup)
--- -- hoauth2
--- import Network.OAuth.OAuth2 (OAuth2Token(..), IdToken(..))
 -- jwt
 import qualified Web.JWT as J (decode, claims, JWTClaimsSet(..), StringOrURI, NumericDate, ClaimsMap(..))
 -- scientific
diff --git a/src/Network/OAuth2/Session.hs b/src/Network/OAuth2/Session.hs
index f0282fe..c194165 100644
--- a/src/Network/OAuth2/Session.hs
+++ b/src/Network/OAuth2/Session.hs
@@ -38,8 +38,7 @@ import qualified Data.Map as M (Map, insert, lookup, alter)
 -- import qualified Data.Heap as H (Heap, empty, null, size, insert, viewMin, deleteMin, Entry(..), )
 -- hoauth2
 import Network.OAuth.OAuth2 (OAuth2Token(..))
-import Network.OAuth2.Experiment (IdpUserInfo, conduitUserInfoRequest, mkAuthorizeRequest, conduitTokenRequest, conduitRefreshTokenRequest)
-import Network.OAuth2.Experiment.Types (HasRefreshTokenRequest(..), WithExchangeToken(..), IdpApplication(..), GrantTypeFlow(..))
+import Network.OAuth2.Experiment (IdpUserInfo, conduitUserInfoRequest, mkAuthorizeRequest, conduitTokenRequest, conduitRefreshTokenRequest, HasRefreshTokenRequest(..), WithExchangeToken, IdpApplication(..), GrantTypeFlow(..))
 import Network.OAuth.OAuth2.Internal (AccessToken(..), ExchangeToken(..), RefreshToken(..), OAuth2Error, IdToken(..))
 import Network.OAuth.OAuth2.TokenRequest (Errors)
 -- http-client
diff --git a/stack.yaml b/stack.yaml
index da433a7..9bf81ca 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -33,10 +33,16 @@ packages:
 - .
 # Dependency packages to be pulled from upstream that are not in the resolver.
 # These entries can reference officially published versions as well as
-# forks / in-progress versions pinned to a git hash. For example:
+# forks / in-progress versions pinned to a git hash. For extra:
 #
 extra-deps:
+# - hoauth2-2.6.0
 - validation-selective-0.2.0.0
+- selective-0.6
+
+allow-newer: true
+
+
 # - acme-missiles-0.3
 # - git: https://github.com/commercialhaskell/stack.git
 #   commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a