diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+0.5.1.0
+=======
+
+* Versions bounds are relaxed.
+
 0.5.0.0
 =======
 
diff --git a/example/acid/servant-auth-token-example-acid.cabal b/example/acid/servant-auth-token-example-acid.cabal
--- a/example/acid/servant-auth-token-example-acid.cabal
+++ b/example/acid/servant-auth-token-example-acid.cabal
@@ -26,22 +26,22 @@
       base                          >= 4.7      && < 5
     , acid-state                    >= 0.14     && < 0.15
     , aeson                         >= 0.11     && < 1.3
-    , aeson-injector                >= 1.0      && < 1.1
+    , aeson-injector                >= 1.1      && < 1.2
     , bytestring                    >= 0.10     && < 0.11
     , exceptions                    >= 0.8      && < 0.9
     , http-types                    >= 0.9      && < 0.10
     , monad-control                 >= 1.0      && < 1.1
     , monad-logger                  >= 0.3      && < 0.4
     , mtl                           >= 2.2      && < 2.3
-    , optparse-applicative          >= 0.12     && < 0.14
+    , optparse-applicative          >= 0.12     && < 0.15
     , safecopy                      >= 0.9      && < 0.10
     , servant                       >= 0.9      && < 0.12
     , servant-auth-token            >= 0.5      && < 0.6
     , servant-auth-token-acid       >= 0.5      && < 0.6
-    , servant-auth-token-api        >= 0.4      && < 0.5
+    , servant-auth-token-api        >= 0.5      && < 0.6
     , servant-server                >= 0.9      && < 0.12
     , text                          >= 1.2      && < 1.3
-    , time                          >= 1.6      && < 1.7
+    , time                          >= 1.6      && < 1.9
     , transformers-base             >= 0.4      && < 0.5
     , wai                           >= 3.2      && < 3.3
     , wai-extra                     >= 3.0      && < 3.1
diff --git a/example/leveldb/servant-auth-token-example-leveldb.cabal b/example/leveldb/servant-auth-token-example-leveldb.cabal
--- a/example/leveldb/servant-auth-token-example-leveldb.cabal
+++ b/example/leveldb/servant-auth-token-example-leveldb.cabal
@@ -1,5 +1,5 @@
 name:                servant-auth-token-example-leveldb
-version:             0.5.0.0
+version:             0.5.1.0
 synopsis:            Example server for token auth for leveldb backend
 description:         Please see README.md
 homepage:            https://github.com/ncrashed/servant-auth-token#readme
@@ -25,7 +25,7 @@
       base                          >= 4.7      && < 5
     , acid-state                    >= 0.14     && < 0.15
     , aeson                         >= 0.11     && < 1.3
-    , aeson-injector                >= 1.0      && < 1.1
+    , aeson-injector                >= 1.1      && < 1.2
     , bytestring                    >= 0.10     && < 0.11
     , exceptions                    >= 0.8      && < 0.9
     , http-types                    >= 0.9      && < 0.10
@@ -33,15 +33,15 @@
     , monad-control                 >= 1.0      && < 1.1
     , monad-logger                  >= 0.3      && < 0.4
     , mtl                           >= 2.2      && < 2.3
-    , optparse-applicative          >= 0.12     && < 0.14
-    , safecopy-store                >= 0.9      && < 0.10
+    , optparse-applicative          >= 0.12     && < 0.15
+    , safecopy                      >= 0.9      && < 0.10
     , servant                       >= 0.11     && < 0.12
     , servant-auth-token            >= 0.5      && < 0.6
-    , servant-auth-token-api        >= 0.4      && < 0.5
+    , servant-auth-token-api        >= 0.5      && < 0.6
     , servant-auth-token-leveldb    >= 0.5      && < 0.6
     , servant-server                >= 0.9      && < 0.12
     , text                          >= 1.2      && < 1.3
-    , time                          >= 1.6      && < 1.7
+    , time                          >= 1.6      && < 1.9
     , transformers-base             >= 0.4      && < 0.5
     , wai                           >= 3.2      && < 3.3
     , wai-extra                     >= 3.0      && < 3.1
diff --git a/example/persistent/servant-auth-token-example-persistent.cabal b/example/persistent/servant-auth-token-example-persistent.cabal
--- a/example/persistent/servant-auth-token-example-persistent.cabal
+++ b/example/persistent/servant-auth-token-example-persistent.cabal
@@ -24,23 +24,23 @@
   build-depends:
       base                          >= 4.7      && < 5
     , aeson                         >= 0.11     && < 1.3
-    , aeson-injector                >= 1.0      && < 1.1
+    , aeson-injector                >= 1.1      && < 1.2
     , bytestring                    >= 0.10     && < 0.11
     , exceptions                    >= 0.8      && < 0.9
     , http-types                    >= 0.9      && < 0.10
     , monad-control                 >= 1.0      && < 1.1
     , monad-logger                  >= 0.3      && < 0.4
     , mtl                           >= 2.2      && < 2.3
-    , optparse-applicative          >= 0.12     && < 0.14
-    , persistent                    >= 2.6      && < 2.7
-    , persistent-postgresql         >= 2.6      && < 2.7
+    , optparse-applicative          >= 0.12     && < 0.15
+    , persistent                    >= 2.6      && < 2.8
+    , persistent-postgresql         >= 2.6      && < 2.8
     , servant                       >= 0.11     && < 0.12
     , servant-auth-token            >= 0.5      && < 0.6
-    , servant-auth-token-api        >= 0.4      && < 0.5
+    , servant-auth-token-api        >= 0.5      && < 0.6
     , servant-auth-token-persistent >= 0.6      && < 0.7
     , servant-server                >= 0.9      && < 0.12
     , text                          >= 1.2      && < 1.3
-    , time                          >= 1.6      && < 1.7
+    , time                          >= 1.6      && < 1.9
     , transformers-base             >= 0.4      && < 0.5
     , wai                           >= 3.2      && < 3.3
     , wai-extra                     >= 3.0      && < 3.1
diff --git a/servant-auth-token.cabal b/servant-auth-token.cabal
--- a/servant-auth-token.cabal
+++ b/servant-auth-token.cabal
@@ -1,5 +1,5 @@
 name:                servant-auth-token
-version:             0.5.0.0
+version:             0.5.1.0
 synopsis:            Servant based API and server for token based authorisation
 description:         Please see README.md
 homepage:            https://github.com/ncrashed/servant-auth-token#readme
@@ -61,17 +61,17 @@
     Servant.Server.Auth.Token.SingleUse
   build-depends:
       base                    >= 4.8    && < 5
-    , aeson-injector          >= 1.0.4  && < 1.1
+    , aeson-injector          >= 1.1    && < 1.2
     , bytestring              >= 0.10   && < 0.11
     , containers              >= 0.5    && < 0.6
     , http-api-data           >= 0.3.5  && < 0.4
     , mtl                     >= 2.2    && < 2.3
     , pwstore-fast            >= 2.4    && < 2.5
-    , servant-auth-token-api  >= 0.4.2  && < 0.5
     , servant                 >= 0.11   && < 0.12
+    , servant-auth-token-api  >= 0.5    && < 0.6
     , servant-server          >= 0.11   && < 0.12
     , text                    >= 1.2    && < 1.3
-    , time                    >= 1.5    && < 1.7
+    , time                    >= 1.5    && < 1.9
     , transformers            >= 0.4    && < 0.6
     , uuid                    >= 1.3    && < 1.4
     , wai                     >= 3.2    && < 3.3
diff --git a/src/Servant/Server/Auth/Token.hs b/src/Servant/Server/Auth/Token.hs
--- a/src/Servant/Server/Auth/Token.hs
+++ b/src/Servant/Server/Auth/Token.hs
@@ -104,6 +104,7 @@
 authServer :: AuthHandler m => ServerT AuthAPI m
 authServer =
        authSignin
+  :<|> authSigninPost
   :<|> authSigninGetCode
   :<|> authSigninPostCode
   :<|> authTouch
@@ -147,6 +148,15 @@
       Just user@(WithField _ UserImpl{..}) -> if passToByteString pass `verifyPassword` passToByteString userImplPassword
         then return user
         else err
+
+-- | Implementation of "signin" method
+authSigninPost :: AuthHandler m
+  => AuthSigninPostBody -- ^ Holds login, password and token lifetime
+  -> m (OnlyField "token" SimpleToken) -- ^ If everything is OK, return token
+authSigninPost AuthSigninPostBody{..} = authSignin
+  (Just authSigninBodyLogin)
+  (Just authSigninBodyPassword)
+  authSigninBodySeconds
 
 -- | Helper to get or generate new token for user
 getAuthToken :: AuthHandler m
diff --git a/stack.yaml b/stack.yaml
--- a/stack.yaml
+++ b/stack.yaml
@@ -15,7 +15,7 @@
 # resolver:
 #  name: custom-snapshot
 #  location: "./custom-snapshot.yaml"
-resolver: lts-8.19
+resolver: lts-10.0
 
 # User packages to be built.
 # Various formats can be used as shown in the example below.
@@ -44,30 +44,25 @@
 - 'example/acid'
 - 'example/persistent'
 - 'example/leveldb'
+#- '../safecopy'
+#- '../servant-auth-token-api'
 # - location:
 #     git: https://github.com/NCrashed/servant-auth-token-api.git
 #     commit: d011f7bfecd18d07ff67ce9f67f8741e110a2719
 #   extra-dep: true
 # - '../servant-auth-token-api'
-- location:
-    git: https://github.com/serokell/rocksdb-haskell.git
-    commit: 325427fc709183c8fdf777ad5ea09f8d92bf8585
-  extra-dep: true
+#- location:
+#    git: https://github.com/serokell/rocksdb-haskell.git
+#    commit: 325427fc709183c8fdf777ad5ea09f8d92bf8585
+#  extra-dep: true
 
 # Dependency packages to be pulled from upstream that are not in the resolver
 # (e.g., acme-missiles-0.3)
 extra-deps:
-- aeson-1.2.1.0
-- aeson-injector-1.0.8.0
-- cabal-doctest-1.0.2
-- concurrent-extra-0.7.0.11
-- rocksdb-haskell-1.0.0
-- safecopy-store-0.9.4
-- servant-0.11
-- servant-auth-token-api-0.4.2.2
-- servant-docs-0.10.0.1
-- servant-server-0.11
-- servant-swagger-1.1.3
+- acid-state-0.14.3
+- rocksdb-haskell-1.0.1
+- safecopy-store-0.9.6
+- servant-auth-token-api-0.5.1.0
 
 # Override default flag values for local packages and extra-deps
 flags: {}
