diff --git a/src/enerbitdso/VERSION b/src/enerbitdso/VERSION
index 99a25fc..44a7df2 100644
--- a/src/enerbitdso/VERSION
+++ b/src/enerbitdso/VERSION
@@ -1 +1 @@
-0.1.16
\ No newline at end of file
+0.1.17
\ No newline at end of file
diff --git a/src/enerbitdso/enerbit.py b/src/enerbitdso/enerbit.py
index e6e16d3..a075dbf 100644
--- a/src/enerbitdso/enerbit.py
+++ b/src/enerbitdso/enerbit.py
@@ -42,9 +42,9 @@ class ScheduleMeasurementRecord(pydantic.BaseModel):
     reactive_energy_exported: float
 
 
-def get_auth_token(base_url, username, password):
+def get_auth_token(base_url: str, username: str, password: pydantic.SecretStr) -> str:
     path = "/auth/token/"
-    data = {"username": username, "password": password}
+    data = {"username": username, "password": password.get_secret_value()}
     with httpx.Client(base_url=base_url, timeout=TIMEOUT, verify=SSL_CONTEXT) as client:
         response = client.post(path, data=data)
         try: