diff --git a/flake.lock b/flake.lock
index b0296f5f3..01ac3b175 100644
--- a/flake.lock
+++ b/flake.lock
@@ -516,7 +516,6 @@
         "serversession": "serversession",
         "xss-sanitize": "xss-sanitize",
         "yesod": "yesod",
-        "yesod-auth-oauth2": "yesod-auth-oauth2",
         "zip-stream": "zip-stream"
       }
     },
@@ -602,23 +601,6 @@
         "url": "https://gitlab.uniworx.de/haskell/yesod.git"
       }
     },
-    "yesod-auth-oauth2": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1717165233,
-        "narHash": "sha256-j12y/Tjqv6aqQDqjlXElECmormeAgnjZ8WIfnEGZHvU=",
-        "ref": "ghc-8.10.4",
-        "rev": "1a67089e5c075ca9474a647bbf26c3354c49036a",
-        "revCount": 416,
-        "type": "git",
-        "url": "https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git"
-      },
-      "original": {
-        "ref": "ghc-8.10.4",
-        "type": "git",
-        "url": "https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git"
-      }
-    },
     "zip-stream": {
       "flake": false,
       "locked": {
diff --git a/flake.nix b/flake.nix
index ba356dbe0..96d62d5ae 100644
--- a/flake.nix
+++ b/flake.nix
@@ -76,10 +76,11 @@
       url = "git+https://gitlab.uniworx.de/haskell/yesod.git?ref=uni2work";
       flake = false;
     };
-    yesod-auth-oauth2 = {
-      url = "git+https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git?ref=ghc-8.10.4";
-      flake = false;
-    };
+    # TODO: does not function due to missing dependencies in snapshot
+    # yesod-auth-oauth2 = {
+    #   url = "git+https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git?ref=ghc-8.10.4";
+    #   flake = false;
+    # };
     cryptonite = {
       url = "git+https://gitlab.uniworx.de/haskell/cryptonite.git?ref=uni2work";
       flake = false;
diff --git a/nix/uniworx/backend.nix b/nix/uniworx/backend.nix
index fdd129cd9..722f912a8 100644
--- a/nix/uniworx/backend.nix
+++ b/nix/uniworx/backend.nix
@@ -7,7 +7,7 @@
 with prev.lib;
 
 let
-  haskellInputs = ["encoding" "memcached-binary" "conduit-resumablesink" "HaskellNet-SSL" "ldap-client" "serversession" "xss-sanitize" "colonnade" "minio-hs" "cryptoids" "zip-stream" "yesod" "cryptonite" "esqueleto" "yesod-auth-oauth2"];
+  haskellInputs = ["encoding" "memcached-binary" "conduit-resumablesink" "HaskellNet-SSL" "ldap-client" "serversession" "xss-sanitize" "colonnade" "minio-hs" "cryptoids" "zip-stream" "yesod" "cryptonite" "esqueleto"];
 in {
   uniworx = final.haskell-nix.stackProject {
     src = prev.stdenv.mkDerivation {
@@ -54,7 +54,6 @@ in {
           yesod-form.src = "${inputs.yesod}/yesod-form";
           yesod-auth.src = "${inputs.yesod}/yesod-auth";
           yesod-test.src = "${inputs.yesod}/yesod-test";
-          yesod-auth-oauth2.src = inputs.yesod-auth-oauth2;
           cryptonite.src = inputs.cryptonite;
           esqueleto.src = inputs.esqueleto;
         };
diff --git a/src/Application.hs b/src/Application.hs
index 61adb291f..225957aa7 100644
--- a/src/Application.hs
+++ b/src/Application.hs
@@ -101,7 +101,7 @@ import UnliftIO.Pool
 import qualified Web.ServerSession.Backend.Acid as Acid
 import Web.ServerSession.Core (StorageException(..))
 
-import Yesod.Auth.OAuth2.AzureADv2 (oauth2AzureADv2Scoped)
+import Yesod.Auth.OAuth2.AzureAD (oauth2AzureADScoped)
 import Yesod.Auth.Util.PasswordStore
 import qualified Yesod.Core.Types as Yesod (Logger(..))
 
@@ -328,7 +328,7 @@ makeFoundation appSettings''@AppSettings{..} = do
 #ifdef DEVELOPMENT
       oauth2Plugins <- liftIO $ sequence
         [ (azureMockServer . fromJust) <$> lookupEnv "OAUTH2_SERVER_PORT"
-        , return $ oauth2AzureADv2Scoped ["openid", "profile", "offline_access"] "42" "42" "shhh"
+        , return $ oauth2AzureADScoped ["openid", "profile", "offline_access"] "42" "shhh"
         ]
 #else
       -- let -- Auth Plugins
@@ -346,7 +346,7 @@ makeFoundation appSettings''@AppSettings{..} = do
       oauth2Plugins <- if
         | UserAuthConfSingleSource (AuthSourceConfAzureAdV2 AzureConf{..}) <- appUserAuthConf -> do
           $logInfoS "OAuth2" "Successfully parsed OAuth2 config from AppSettings"
-          return . singleton $ oauth2AzureADv2Scoped (Set.toList azureConfScopes) (tshow azureConfClientId) azureConfClientSecret
+          return . singleton $ oauth2AzureADScoped (Set.toList azureConfScopes) (tshow azureConfClientId) azureConfClientSecret
         | otherwise -> do
           when appSingleSignOn $ do
             $logErrorS "OAuth2" "SingleSignOn via AzureADv2 is enabled, but user-auth config could not be parsed!"
diff --git a/src/Auth/OAuth2.hs b/src/Auth/OAuth2.hs
index d7cddca2b..765fe7636 100644
--- a/src/Auth/OAuth2.hs
+++ b/src/Auth/OAuth2.hs
@@ -122,15 +122,15 @@ instance FromJSON UserID where
 azureMockServer :: YesodAuth m => String -> AuthPlugin m
 azureMockServer port =
   let oa = OAuth2
-            { oauth2ClientId = "42"
-            , oauth2ClientSecret = Just "shhh"
-            , oauth2AuthorizeEndpoint = fromString (mockServerURL <> "/auth")
+            { oauthClientId = "42"
+            , oauthClientSecret = Just "shhh"
+            , oauthOAuthorizeEndpoint = fromString (mockServerURL <> "/auth")
               `withQuery` [ scopeParam " " ["openid", "profile", "email", "offline_access"] -- TODO read scopes from config
                           , ("response_type", "code id_token")
                           , ("nonce", "Foo") -- TODO generate meaningful value
                           ]
-            , oauth2TokenEndpoint = fromString $ mockServerURL <> "/token"
-            , oauth2RedirectUri = Nothing -- TODO use approot as redirect uri?
+            , oauthAccessTokenEndpoint = fromString $ mockServerURL <> "/token"
+            , oauthCallback = Nothing -- TODO use approot as redirect uri?
             }
       mockServerURL = "http://localhost:" <> fromString port
       profileSrc = fromString $ mockServerURL <> "/users/me"
diff --git a/stack-flake.yaml b/stack-flake.yaml
index 38c9f3c75..dfd2ddefb 100644
--- a/stack-flake.yaml
+++ b/stack-flake.yaml
@@ -45,7 +45,6 @@ extra-deps:
   - @yesod@/yesod-auth
   - @yesod@/yesod-test
   - @yesod@/yesod
-  - @yesod-auth-oauth2@
   - @cryptonite@
   - @esqueleto@
   
@@ -56,6 +55,8 @@ extra-deps:
     subdirs:
       - gearhash
       - fastcdc
+  - git: https://github.com/freckle/yesod-auth-oauth2.git
+    commit: 342dac80e40b10f07694a7e9aa8bab6d03ed6d66
 
   - classy-prelude-yesod-1.5.0@sha256:8f7e183bdfd6d2ea9674284c4f285294ab086aff60d9be4e5d7d2f3c1a2b05b7,1330
   - acid-state-0.16.0.1@sha256:d43f6ee0b23338758156c500290c4405d769abefeb98e9bc112780dae09ece6f,6207
diff --git a/stack.yaml b/stack.yaml
index ae115f3a8..dc195001f 100644
--- a/stack.yaml
+++ b/stack.yaml
@@ -88,8 +88,8 @@ extra-deps:
       - yesod-eventsource
       - yesod-websockets
 
-  - git: https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git
-    commit: da676b530887306b645d0170f82e7dd0611d9601
+  - git: https://github.com/freckle/yesod-auth-oauth2
+    commit: 342dac80e40b10f07694a7e9aa8bab6d03ed6d66
 
   - git: https://gitlab.uniworx.de/haskell/cryptonite.git
     commit: 71a630edaf5f22c464e24fac8d9d310f4055ea1f
diff --git a/stack.yaml.lock b/stack.yaml.lock
index 790fa625f..40712391d 100644
--- a/stack.yaml.lock
+++ b/stack.yaml.lock
@@ -416,16 +416,16 @@ packages:
     git: https://gitlab.uniworx.de/haskell/yesod.git
     subdir: yesod-websockets
 - completed:
-    commit: da676b530887306b645d0170f82e7dd0611d9601
-    git: https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git
+    commit: 342dac80e40b10f07694a7e9aa8bab6d03ed6d66
+    git: https://github.com/freckle/yesod-auth-oauth2
     name: yesod-auth-oauth2
     pantry-tree:
-      sha256: cac5ec87651ea76e9052742b0a05598f7133ce405a8052c813c81741b3b2d667
-      size: 4652
-    version: 0.7.3.0
+      sha256: 22e8be5c8128e2f0fb976cb904ac93cefb49e6feef6bcadb7746641be11dcb13
+      size: 3054
+    version: 0.6.3.4
   original:
-    commit: da676b530887306b645d0170f82e7dd0611d9601
-    git: https://gitlab.uniworx.de/haskell/yesod-auth-oauth2.git
+    commit: 342dac80e40b10f07694a7e9aa8bab6d03ed6d66
+    git: https://github.com/freckle/yesod-auth-oauth2
 - completed:
     commit: 71a630edaf5f22c464e24fac8d9d310f4055ea1f
     git: https://gitlab.uniworx.de/haskell/cryptonite.git