diff --git a/backend/src/main/java/de/szut/casino/deposit/DepositController.java b/backend/src/main/java/de/szut/casino/deposit/DepositController.java
index 44e97cb..cdf883d 100644
--- a/backend/src/main/java/de/szut/casino/deposit/DepositController.java
+++ b/backend/src/main/java/de/szut/casino/deposit/DepositController.java
@@ -47,7 +47,7 @@ public class DepositController {
     public ResponseEntity<SessionIdDto> checkout(@RequestBody @Valid AmountDto amountDto, @RequestHeader("Authorization") String token) throws StripeException {
         Stripe.apiKey = stripeKey;
 
-        KeycloakUserDto userData = getKeycloakUserInfo(token);
+        KeycloakUserDto userData = getAuthentikUserInfo(token);
         Optional<UserEntity> optionalUserEntity = this.userRepository.findOneByAuthentikId(userData.getSub());
 
         SessionCreateParams params = SessionCreateParams.builder()
@@ -77,7 +77,7 @@ public class DepositController {
         return ResponseEntity.ok(new SessionIdDto(session.getId()));
     }
 
-    private KeycloakUserDto getKeycloakUserInfo(String token) {
+    private KeycloakUserDto getAuthentikUserInfo(String token) {
         HttpHeaders headers = new HttpHeaders();
         headers.set("Authorization", token);
         ResponseEntity<KeycloakUserDto> response = this.restTemplate.exchange("https://oauth.simonis.lol/application/o/userinfo/", HttpMethod.GET, new HttpEntity<>(headers), KeycloakUserDto.class);
diff --git a/backend/src/main/java/de/szut/casino/user/UserService.java b/backend/src/main/java/de/szut/casino/user/UserService.java
index 21ab433..d5ce222 100644
--- a/backend/src/main/java/de/szut/casino/user/UserService.java
+++ b/backend/src/main/java/de/szut/casino/user/UserService.java
@@ -49,12 +49,12 @@ public class UserService {
     }
 
     public Optional<UserEntity> getCurrentUser(String token) {
-        KeycloakUserDto userData = getKeycloakUserInfo(token);
+        KeycloakUserDto userData = getAuthentikUserInfo(token);
 
         if (userData == null) {
             return Optional.empty();
         }
-        return this.userRepository.findOneByKeycloakId(userData.getSub());
+        return this.userRepository.findOneByAuthentikId(userData.getSub());
     }
 
     private KeycloakUserDto getAuthentikUserInfo(String token) {
diff --git a/backend/src/main/java/de/szut/casino/user/dto/KeycloakUserDto.java b/backend/src/main/java/de/szut/casino/user/dto/KeycloakUserDto.java
index 4238e13..3efe472 100644
--- a/backend/src/main/java/de/szut/casino/user/dto/KeycloakUserDto.java
+++ b/backend/src/main/java/de/szut/casino/user/dto/KeycloakUserDto.java
@@ -10,6 +10,8 @@ import lombok.Setter;
 @AllArgsConstructor
 @NoArgsConstructor
 public class KeycloakUserDto {
+    // Renamed class but kept for backward compatibility
+    // This now contains Authentik user info
     private String sub;
     private String preferred_username;
 }
diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index a276667..4c56a9d 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -12,12 +12,28 @@ spring.application.name=lf12_starter
 
 spring.security.oauth2.client.registration.authentik.client-id=MDqjm1kcWKuZfqHJXjxwAV20i44aT7m4VhhTL3Nm
 spring.security.oauth2.client.registration.authentik.client-secret=GY2F8te6iAVYt1TNAUVLzWZEXb6JoMNp6chbjqaXNq4gS5xTDL54HqBiAlV1jFKarN28LQ7FUsYX4SbwjfEhZhgeoKuBnZKjR9eiu7RawnGgxIK9ffvUfMkjRxnmiGI5
+spring.security.oauth2.client.registration.authentik.provider=authentik
+spring.security.oauth2.client.registration.authentik.client-name=Authentik
+spring.security.oauth2.client.registration.authentik.scope=openid,email,profile
+spring.security.oauth2.client.registration.authentik.client-authentication-method=client_secret_basic
+spring.security.oauth2.client.registration.authentik.authorization-grant-type=authorization_code
+spring.security.oauth2.client.registration.authentik.redirect-uri={baseUrl}/login/oauth2/code/{registrationId}
+
+# Provider settings
+spring.security.oauth2.client.provider.authentik.issuer-uri=https://oauth.simonis.lol/application/o/casino-dev/
+spring.security.oauth2.client.provider.authentik.authorization-uri=https://oauth.simonis.lol/application/o/authorize/
+spring.security.oauth2.client.provider.authentik.token-uri=https://oauth.simonis.lol/application/o/token/
+spring.security.oauth2.client.provider.authentik.user-info-uri=https://oauth.simonis.lol/application/o/userinfo/
+spring.security.oauth2.client.provider.authentik.jwk-set-uri=https://oauth.simonis.lol/application/o/casino-dev/jwks/
+spring.security.oauth2.client.provider.authentik.user-name-attribute=preferred_username
+
+# Resource server config
 spring.security.oauth2.resourceserver.jwt.issuer-uri=https://oauth.simonis.lol/application/o/casino-dev/
 spring.security.oauth2.resourceserver.jwt.jwk-set-uri=https://oauth.simonis.lol/application/o/casino-dev/jwks/
 
 #OIDC provider configuration:
 logging.level.org.springframework.security=DEBUG
-#validating JWT token against our Keycloak server
+#validating JWT token against our Authentik server
 
 springdoc.swagger-ui.path=swagger
 springdoc.swagger-ui.try-it-out-enabled=true