diff --git a/appinfo/info.xml b/appinfo/info.xml
index 77f5e5c..345c2ba 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -8,7 +8,7 @@
     <screenshot>https://raw.githubusercontent.com/felixrupp/user_cas/master/.github/SCREENSHOTS/splashscreen.png</screenshot>
     <author>Felix Rupp</author>
     <namespace>UserCAS</namespace>
-    <version>1.5.0</version>
+    <version>1.5.1</version>
     <types>
         <prelogin/>
         <authentication/>
@@ -32,7 +32,7 @@
         <php min-version="5.6" max-version="7.1.99"/>
 
         <owncloud min-version="10.0" max-version="10.0.7"/>
-        <nextcloud min-version="13.0.0" max-version="13.0.99"/>
+        <nextcloud min-version="13.0.0" max-version="13.0.4"/>
     </dependencies>
 
     <settings>
diff --git a/appinfo/signature.json b/appinfo/signature.json
index 0571798..658c530 100644
--- a/appinfo/signature.json
+++ b/appinfo/signature.json
@@ -1,11 +1,11 @@
 {
     "hashes": {
         ".gitignore": "604441d4df581dc79c7123a81a10b6006af1cbe16dc19ae6e31891d4c6d097831f081489ce55a896f1ac84ee42079e97d456068a2791ffac7b18a5352d2083f6",
-        "CHANGELOG.md": "d756e4b2f3f57adefcf625ee143dd6e1c9d2ca04d908b6f8f8d7c740a47232cff1d0367a62fa269bbd98c55c85d1475d0591b402ec26135e4c58b5bc58ff4842",
-        "CONTRIBUTING.md": "55bef778b2317ad7c44ea9cd756465d0356e44c7c164b150b5d90df87940ac30f661ba5eee6513c67d8d12f121783f0afc0a078471f3b098b1ffb937f9048814",
-        "README.md": "9202e057f991b80af5735a1d7ca3c7adf2ffec054a5b9832c09aec66303ea38e12783155bb93bc0229c2b142b6f97740287286339ba42dcaf522bd38021bf2c8",
+        "CHANGELOG.md": "3e9380a1eef38e7b4559456856b7648ccfce5f3199263925e7ea7ac5fe371c44b16df06d51ba9642fd978067d5af8f68f2222a1ef60855fa01ae6122bfc91fc3",
+        "CONTRIBUTING.md": "cda00ccccafaa76814719e7a6b5d7db1550abf383f51f52d39bdc58cab97a699ef583b475b8a6a21ecb79991b95a001f14a94ac87e707eab44f20e7362543f06",
+        "README.md": "def9c9529bbaffea2b5605623fb5db4ac8eb42b8f9e256ab0943fa51d15fa313be9cd017e29fb2887ea909e4f2c61560b07fafea2eccf290d45d8d4de057771f",
         "appinfo\/app.php": "7f8296ce1885de2aecb5df8d3372e96affb0484c4c43ed5745ff29ba9e28d17d3c57d3a8cafcdb331c8645a44bd40a156b660a2b3de7fa7b4ed501318dddb5ee",
-        "appinfo\/info.xml": "d2a172e783b0e3ae3e61f0f345e042dd0a59c654a3ebad01cbd3ac455378e09f2f4fae4e1261d1eb294d9de6fbf4602df0cab5db95a7f9fc6a52d0b2333280f0",
+        "appinfo\/info.xml": "3a960d389cb28352d3069459e197f8ac4d536c50032a3806be36bb0c0f313b1e369ede7ef1dbea447b9986651fb135aa6e268cb4c6d43f90bb823036f0019845",
         "appinfo\/routes.php": "43312cc1573b9e6523c824ff212320efbd9082fce3f433d24457894c4aedb66bcd08d119e54e0d295af779be45578b16da9f8676ce9a8a601f1a368d931801bc",
         "composer.json": "e1c2bb8cfde95f18f72a9eaeddc2da9f17f2f337cbb1231f3b76e770de1bb4918070d29cc1431af038dc932c683230d478e6f7c6346ac4bae0efaa39f404e0e0",
         "composer.lock": "927652d90d52728946970e64fc425fd2db8fef55631230f863fdeb1ad6596115932f47ac471fad2f675797c85643280b850ca23991563ef75dad32e31cc6fc5f",
@@ -17,26 +17,26 @@
         "img\/cas-logo.png": "e7e22ed468cd255152e066e9e5d51734bb6c2f09c6a32e57d48b93b1f490a9ed373b244a0068cdad4d042854d29aa661b2dc5e93db0b99c14b95b40d5b5dfc69",
         "js\/settings.dev.js": "7a8c4a02731bef9eb6bcb5b3cd7f0fdb1b3c23460c4eaea781663c9175649e4719d248c3a57c06bd5a7fa70d93ad9bd59e2a0c509972bb296482d1d6006e71e2",
         "js\/settings.js": "67434c2f646608b8b2042b10be2a5f6efa8444cf790bdd62d010c6a821add8df20502617e1238cde18a6e65d5770f56ad8b7d0233785e16e4ed441e9554f6f17",
-        "l10n\/de.js": "51c3eec80fbd5c5e64cfcd02c707a9dcc6bf4879aed89008694d9c56fca7b302a5b407836f76c1fd282ebdfc2928363efa63ff267306084e8ff2281b91efbe22",
-        "l10n\/de.json": "e1bb9512b6e3a7a7d8a8f799280547e1ed4e8a4f6d11572f7536e6b477da9b11d5c423dae6ac752d7f84b2b5c57e59b59541f814a5e2acccef62284f3fe27432",
-        "l10n\/de\/user_cas.po": "75116f6a528d3597d550fb1203ddf0384a739c1bc84adf09a8d17662f9da2e0c6540a600dee704ab7cdbe44bdc01d70c187fd7f18e8f5e4f6d2b2c9812ac8c08",
-        "l10n\/fr.js": "f977f510731ed368648f5d506f0c2e7d798f8025b5d893285a9337dbb4c2fcb5f4d452af22e958d916ec2ef84047b6c5c7257b10a1a5845c0bc4f1f787747bab",
-        "l10n\/fr.json": "24e407b9543447d8919fee9c007161bfa3381d82f424bec5b9454caea7dc2d5cd1eeee437168f1ca3cb28603ff5297f55b3325928cd510736cacf4cc26c49896",
-        "l10n\/fr\/user_cas.po": "08b0ebd37b735173c0633f1c41727375e5ad6a8919d9355f4090ff980265481ca4c72a314f65b6506c4c26b24c37c13304cd89b9672bddb15a12bebba97f3d78",
-        "l10n\/templates\/user_cas.pot": "cd5038967bcd000eb6c08c06eca63df6a6530bad7f723f78240ac786cfe81688915409821b350de11ba966da49852b0fa478e36511c733283c7c2eee9acd940b",
+        "l10n\/de.js": "02a84d07116ddd89e6951a220fa08e30dd1949ae2aa3e6cabe0f3302630f26778cb3a777bf9d3c901b73d54c6ae108f4c8be2803435256d669d9ab81ddd45429",
+        "l10n\/de.json": "d6d01301a93061874f8eee601d41eff662a70aa228b977f23becee922aa15444ee8a23157d75c6b068c787a6c570f271a361b6dda747e62d862e72cde3372f4d",
+        "l10n\/de\/user_cas.po": "a9899ba602fce694e6f4e0c9effd220af15d16d487e5ccb749818d9392627b511d226e2c88c458f6660e8b829ce9f21713adf94c0fd64bb2b56118afcba5f63b",
+        "l10n\/fr.js": "c75b0fc5feaf4b907cadabe70fdc800e7b617b4b1812b7e7f10266066037ccd6ffc3e3525df9523f68c34761529bc77f01c6dc07d2b287e73b0f52f65869c805",
+        "l10n\/fr.json": "c5289c6494cdaeb932b4dea1b4ecb9c6645cc23d2efc3aaaebd9744bc4e9b585222afcb3fb89f4b2da33033d24e436142e2e21093e9bfb9b86ed3f9a4473ca27",
+        "l10n\/fr\/user_cas.po": "8aa46d3d5ba960d64b7614547c9945af8815b1d35e25bafb229f0e7284a5c76f34c2c514f3e1d80f02c63d443fd8f609a341d1322c93e0c5d1b7948dc02d7461",
+        "l10n\/templates\/user_cas.pot": "5a8c0893ce57b9eca5618919b2766f8074c0eaace49d99f73e4fc76631b6defdb29c42e45c430272cb3e6a439c7e83e001b24b7a8870bd07c315ed7d4e4c1d21",
         "lib\/AppInfo\/Application.php": "ea0c22b592bd971b7fa9612f1cfaacdcebdf72f631470d6393f15b910cf2d59a23806a4965d4483c6875e62aa919ff499817b32384fbb00d940e2a94f52b78ec",
-        "lib\/Controller\/AuthenticationController.php": "163c18bf826e3024af77b4e6ec418034dd06281e9d84c1ca74cd7a97219e80fe3e27ef983a9fef678352479fd9a78902aaaf1a8a4596b7760aeca6b708ef52a1",
+        "lib\/Controller\/AuthenticationController.php": "1d10fa5474c829af5c46c80490dad587c84f6682dc6c0c62998f6fd7d5b57dd4c0c76b5e30468c812b317399d7e48c151feda0e7de1aae59cd6aa8ddd5abcef1",
         "lib\/Controller\/SettingsController.php": "7c6c66a2feebcbabb22b38f01def2cff2859f678008adbcb948cf81f32f6d4a8bf57e56f17ed00a4151c1dc18b4488747e8f22e5feb3b4e74ce1774a8c24018e",
         "lib\/Exception\/PhpCas\/PhpUserCasLibraryNotFoundException.php": "4a388df6826b61ecf2fd723dcf2088b1554da1016a5760c6112fa5fc56d7ed72c501103cc63e498b30d1f3b09ac117677d44be7c808e825f2eaa9b1786cc8c6d",
         "lib\/Exception\/UserCasException.php": "6c40b8af0e887988c7d752feed217b471e3d873e2671a33fd154ef4899c308747422b5ede4943cd493871ace333de96d7f7aa7cdcc061b9367dccb99be1ac193",
-        "lib\/Hooks\/UserHooks.php": "bb65d2098d2d0ec1e4c1ebc841e27892b65d2d1575c1423251618da0ca59fca722cd9974141eb162356b5ee169309924c8e999ae3c31a1615b0c24eb1f57988c",
+        "lib\/Hooks\/UserHooks.php": "0bba8573907cbe29ec0a07b5d3623d750b43fd161d9bc633e0f52be2ae64f34efb70fa61110ddf67b09cd57a62bd3b23bb06d31d5432097f740f788a55c098dc",
         "lib\/Panels\/Admin.php": "b83d5e9018cc9e1fa46b3bedebb29aa045d16cd9f0e232285440f04ec2d210ad3fbb997f814ccdc4a4d2cdcc364a8252d0fe6d2e96b5f6656a870d304009bf8d",
-        "lib\/Service\/AppService.php": "cc1c5ab1a6cd05fdcb25c0d2ccbc55f946cd55995fec9a654622d1cd304f52f4ae54c073dade7e30f9d2d9058650cb2553aad1509ed49ca72091c483fae52f49",
+        "lib\/Service\/AppService.php": "26906bbfc97102f62d9216198f53291a7c7a0ca27c3078c2adb31a9531fbea799bfeded798ae81c7534c6a8fba12e851439fb8ba9ea220e4ab355dd2fd08b1a8",
         "lib\/Service\/LoggingService.php": "ed213a72ecfb72b622a5412305cab141ada5bcb6a189ac6ed34aa03a4678f0e2d8e65bbe2af371197de0e8e6d8e4a87a1aa5aba63a43db2f903dad9a19d41c5d",
         "lib\/Service\/UserService.php": "36cc053641abfcb8a4213b05797cd560c5100037675b5caaa3668710b030536517a0d0268bbe271d3df1a0443d5b39e9243703804632bbca7b9cfe0a965cf56a",
         "lib\/User\/Backend.php": "dad4a96ee60ce45b56c998177b3a27cb06ae60e925768cefa080e04ca69eb5c9bc92d05bb06d6deecd308691a6ae937624b9aa59b1977b00166b8a670fc69a5e",
         "templates\/admin.php": "909baf14d3800a5bdc75d6e8a33e82ffd3dc314dc3cb7b060a5a5e0fd9587f4edf8d1a6f94e0abf3574dc4d8e732622ccda855779f3864db6870c31322b8a0fe",
-        "templates\/cas-error.php": "f22d7352802f146e72864d6fc373d6200a228e360dfb34a013e5216e862b18f2e2b5fe3c79b322349e5067ddc1bf1ae36ccc6406db3a4314ae84de3ccab3528e",
+        "templates\/cas-error.php": "42bcf4f53a1ad967dc30160541634f2f732cecbb1c3e28ce283ab07042beeb1387896c5c3cc4b7553dda903e0a062a41f69450f219858c81871b6d122741fcd2",
         "vendor\/autoload.php": "ebd86aed33b07fdb281190319bbd3c0bae82199965ac10f81d9a4ac51a5072eebfdb96bbdcccc1d69f8f0e5aa8a7606f10ebc92531fe871f688463a367ca2f20",
         "vendor\/composer\/ClassLoader.php": "9acadbf32ca0ee18c534f508f20041bcb7629cb8c7c51ef7b3b967ecd93734ecee3afac65d8fc05116c0894ed39bce85cc3eb6bc65a573955291352d84d779fd",
         "vendor\/composer\/LICENSE": "f3bb64009f41a425df5a9bbab53490f0eb9b74fa8d6aaa2f57efb928edc4ffff330260666edeaa04a91fed708c3663371cf01b284f3a08d6698aaef7a23f355a",
@@ -104,6 +104,6 @@
         "vendor\/jasig\/phpcas\/source\/CAS\/Request\/RequestInterface.php": "4af4517889e011e850bb08cd3a0cccf2a98c07660b5e5fb45ceb93b8ff80fb92747734b6a6e84edd18351d52682faa4b9b8338ee1739cdbf79639afeae416b38",
         "vendor\/jasig\/phpcas\/source\/CAS\/TypeMismatchException.php": "447fad6f345f69ac5a875f8e201b671c44c7bc3524a51b8518343b8f43151bd8fa1a59740007523b3a8a1063621f002a82044402fa2a685c14050301e2add568"
     },
-    "signature": "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",
+    "signature": "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",
     "certificate": "-----BEGIN CERTIFICATE-----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\r\nsX3QVjmT5FOfMLnX7lqJaU51smbk0jV2fA==\r\n-----END CERTIFICATE-----"
 }
\ No newline at end of file