diff --git a/backend/src/main/resources/application.properties b/backend/src/main/resources/application.properties
index e2e825cd..248bcdab 100644
--- a/backend/src/main/resources/application.properties
+++ b/backend/src/main/resources/application.properties
@@ -33,7 +33,7 @@ hub.keycloak.oidc.cryptomator-client-id=cryptomator
 %dev.quarkus.keycloak.devservices.start-command=start-dev
 %dev.quarkus.keycloak.devservices.port=8180
 %dev.quarkus.keycloak.devservices.service-name=quarkus-cryptomator-hub
-%dev.quarkus.keycloak.devservices.image-name=ghcr.io/cryptomator/keycloak:23.0.7
+%dev.quarkus.keycloak.devservices.image-name=ghcr.io/cryptomator/keycloak:24.0.4
 %dev.quarkus.oidc.devui.grant.type=code
 # OIDC will be mocked during unit tests. Use fake auth url to prevent dev services to start:
 %test.quarkus.oidc.auth-server-url=http://localhost:43210/dev/null
diff --git a/backend/src/main/resources/dev-realm.json b/backend/src/main/resources/dev-realm.json
index d60eda30..f8554550 100644
--- a/backend/src/main/resources/dev-realm.json
+++ b/backend/src/main/resources/dev-realm.json
@@ -49,6 +49,8 @@
   "users": [
     {
       "username": "admin",
+      "firstName": "admin",
+      "lastName": "admin",
       "email": "admin@localhost",
       "enabled": true,
       "attributes": {
@@ -66,18 +68,27 @@
     },
     {
       "username": "alice",
+      "firstName": "alice",
+      "lastName": "alice",
+      "email": "alice@localhost",
       "enabled": true,
       "credentials": [{"type": "password", "value": "asd"}],
       "realmRoles": ["user"]
     },
     {
       "username": "bob",
+      "firstName": "bob",
+      "lastName": "bob",
+      "email": "bob@localhost",
       "enabled": true,
       "credentials": [{"type": "password", "value": "asd"}],
       "realmRoles": ["user"]
     },
     {
       "username": "carol",
+      "firstName": "carol",
+      "lastName": "carol",
+      "email": "carol@localhost",
       "enabled": true,
       "credentials": [{"type": "password", "value": "asd"}],
       "realmRoles": ["user"],
@@ -85,6 +96,9 @@
     },
     {
       "username": "dave",
+      "firstName": "dave",
+      "lastName": "dave",
+      "email": "dave@localhost",
       "enabled": true,
       "credentials": [{"type": "password", "value": "asd"}],
       "realmRoles": ["user"],
@@ -92,6 +106,9 @@
     },
     {
       "username": "erin",
+      "firstName": "erin",
+      "lastName": "erin",
+      "email": "erin@localhost",
       "enabled": true,
       "credentials": [{"type": "password", "value": "asd"}],
       "realmRoles": ["user"],
@@ -99,6 +116,8 @@
     },
     {
       "username": "syncer",
+      "firstName": "syncer",
+      "lastName": "syncer",
       "email": "syncer@localhost",
       "enabled": true,
       "attributes": {
@@ -227,4 +246,4 @@
   "browserSecurityHeaders": {
     "contentSecurityPolicy": "frame-src 'self'; frame-ancestors 'self' http://localhost:*; object-src 'none';"
   }
-}
\ No newline at end of file
+}
diff --git a/keycloak/Dockerfile b/keycloak/Dockerfile
index a5f3c4cd..efe6976c 100644
--- a/keycloak/Dockerfile
+++ b/keycloak/Dockerfile
@@ -1,4 +1,4 @@
-FROM quay.io/keycloak/keycloak:23.0.7 as builder
+FROM quay.io/keycloak/keycloak:24.0.4 as builder
 ENV KC_HEALTH_ENABLED=true
 ENV KC_METRICS_ENABLED=true
 ENV KC_HTTP_RELATIVE_PATH=/kc
@@ -11,7 +11,7 @@ FROM registry.access.redhat.com/ubi9 AS ubi-micro-build
 RUN mkdir -p /mnt/rootfs
 RUN dnf install --installroot /mnt/rootfs curl --releasever 9 --setopt install_weak_deps=false --nodocs -y; dnf --installroot /mnt/rootfs clean all
 
-FROM quay.io/keycloak/keycloak:23.0.7
+FROM quay.io/keycloak/keycloak:24.0.4
 LABEL maintainer="info@skymatic.de"
 COPY --from=builder /opt/keycloak/ /opt/keycloak/
 COPY --from=ubi-micro-build /mnt/rootfs /