diff --git a/src/authenticators/ldap_ynhuser.py b/src/authenticators/ldap_ynhuser.py
index 98c8547246..b80f640c93 100644
--- a/src/authenticators/ldap_ynhuser.py
+++ b/src/authenticators/ldap_ynhuser.py
@@ -252,7 +252,7 @@ def set_session_cookie(self, infos):
             secure=True,
             httponly=True,
             path="/",
-            samesite="strict" if not is_dev else None,
+            samesite="lax" if not is_dev else None,
             domain=f".{request.get_header('host')}",
             max_age=SESSION_VALIDITY
             - 600,  # remove 1 minute such that cookie expires on the browser slightly sooner on browser side, just to help desimbuigate edge case near the expiration limit
@@ -305,7 +305,7 @@ def get_session_cookie(self, decrypt_pwd=False):
             secure=True,
             httponly=True,
             path="/",
-            samesite="strict" if not is_dev else None,
+            samesite="lax" if not is_dev else None,
             domain=f".{request.get_header('host')}",
             max_age=SESSION_VALIDITY
             - 600,  # remove 1 minute such that cookie expires on the browser slightly sooner on browser side, just to help desimbuigate edge case near the expiration limit