diff --git a/.env.sample b/.env.sample
index 31c0ac71..be782996 100644
--- a/.env.sample
+++ b/.env.sample
@@ -35,7 +35,6 @@ SCHNEIDER_AUTH_HEADER=auth
 
 # SSO
 SSO_SERVER_BASE_URL=https://login.naturschutz.rlp.de
-OAUTH_CODE_VERIFIER=CHANGE_ME
 OAUTH_CLIENT_ID=CHANGE_ME
 OAUTH_CLIENT_SECRET=CHANGE_ME
 PROPAGATION_SECRET=CHANGE_ME
diff --git a/konova/sub_settings/sso_settings.py b/konova/sub_settings/sso_settings.py
index 2a50e60c..3e80cf15 100644
--- a/konova/sub_settings/sso_settings.py
+++ b/konova/sub_settings/sso_settings.py
@@ -12,8 +12,6 @@ SSO_SERVER_BASE = env("SSO_SERVER_BASE_URL")
 SSO_SERVER = f"{SSO_SERVER_BASE}sso/"
 
 # OAuth settings
-OAUTH_CODE_VERIFIER = env("OAUTH_CODE_VERIFIER")
-
 OAUTH_CLIENT_ID = env("OAUTH_CLIENT_ID")
 OAUTH_CLIENT_SECRET = env("OAUTH_CLIENT_SECRET")