diff --git a/backend/app/security.py b/backend/app/security.py
index 2d9c5fc..4fb79b1 100644
--- a/backend/app/security.py
+++ b/backend/app/security.py
@@ -1,21 +1,27 @@
 from datetime import datetime, timedelta, timezone
 
+import bcrypt
 from jose import JWTError, jwt
-from passlib.context import CryptContext
 
 from .config import get_settings
 
 settings = get_settings()
 
-pwd_context = CryptContext(schemes=["bcrypt"], deprecated="auto")
+# bcrypt akzeptiert maximal 72 Bytes – längere Passwörter werden abgeschnitten.
+_BCRYPT_MAX_BYTES = 72
 
 
 def hash_password(password: str) -> str:
-    return pwd_context.hash(password)
+    pw = password.encode("utf-8")[:_BCRYPT_MAX_BYTES]
+    return bcrypt.hashpw(pw, bcrypt.gensalt()).decode("utf-8")
 
 
 def verify_password(password: str, password_hash: str) -> bool:
-    return pwd_context.verify(password, password_hash)
+    try:
+        pw = password.encode("utf-8")[:_BCRYPT_MAX_BYTES]
+        return bcrypt.checkpw(pw, password_hash.encode("utf-8"))
+    except (ValueError, TypeError):
+        return False
 
 
 def create_access_token(subject: str, role: str) -> str:
diff --git a/backend/requirements.txt b/backend/requirements.txt
index bde3733..99a6b17 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -5,7 +5,6 @@ psycopg2-binary==2.9.10
 pydantic==2.10.4
 pydantic-settings==2.7.1
 python-jose[cryptography]==3.3.0
-passlib[bcrypt]==1.7.4
 bcrypt==4.2.1
 httpx==0.28.1
 python-dateutil==2.9.0.post0