diff --git a/monkey/monkey_island/cc/repository/i_credentials_repository.py b/monkey/monkey_island/cc/repository/i_credentials_repository.py
index 42fc3898f..381782533 100644
--- a/monkey/monkey_island/cc/repository/i_credentials_repository.py
+++ b/monkey/monkey_island/cc/repository/i_credentials_repository.py
@@ -43,7 +43,7 @@ class ICredentialsRepository(ABC):
         """
         pass
 
-    def save_configured_credentials(self, credentials: Credentials):
+    def save_configured_credentials(self, credentials: Sequence[Credentials]):
         """
         Save credentials that were configured.
 
@@ -52,7 +52,7 @@ class ICredentialsRepository(ABC):
         """
         pass
 
-    def save_stolen_credentials(self, credentials: Credentials):
+    def save_stolen_credentials(self, credentials: Sequence[Credentials]):
         """
         Save credentials that were stolen during a simulation.
 
diff --git a/monkey/monkey_island/cc/repository/mongo_credentials_repository.py b/monkey/monkey_island/cc/repository/mongo_credentials_repository.py
index c124490a4..df5d0e417 100644
--- a/monkey/monkey_island/cc/repository/mongo_credentials_repository.py
+++ b/monkey/monkey_island/cc/repository/mongo_credentials_repository.py
@@ -34,15 +34,15 @@ class MongoCredentialsRepository(ICredentialsRepository):
         except RetrievalError as err:
             raise err
 
-    def save_configured_credentials(self, credentials: Credentials):
+    def save_configured_credentials(self, credentials: Sequence[Credentials]):
         try:
-            mongo.db.configured_credentials.insert_one(credentials)
+            mongo.db.configured_credentials.insert_many(credentials)
         except Exception as err:
             raise StorageError(err)
 
-    def save_stolen_credentials(self, credentials: Credentials):
+    def save_stolen_credentials(self, credentials: Sequence[Credentials]):
         try:
-            mongo.db.stolen_credentials.insert_one(credentials)
+            mongo.db.stolen_credentials.insert_many(credentials)
         except Exception as err:
             raise StorageError(err)
 
diff --git a/monkey/tests/monkey_island/stub_propagation_credentials_repository.py b/monkey/tests/monkey_island/stub_propagation_credentials_repository.py
index 7bf6f85a7..7a2375c6c 100644
--- a/monkey/tests/monkey_island/stub_propagation_credentials_repository.py
+++ b/monkey/tests/monkey_island/stub_propagation_credentials_repository.py
@@ -47,10 +47,10 @@ class StubPropagationCredentialsRepository(ICredentialsRepository):
             Credentials.from_mapping(PROPAGATION_CREDENTIALS_2, monkey_guid="second_guid"),
         ]
 
-    def save_configured_credentials(self, credentials: Credentials):
+    def save_configured_credentials(self, credentials: Sequence[Credentials]):
         pass
 
-    def save_stolen_credentials(self, credentials: Credentials):
+    def save_stolen_credentials(self, credentials: Sequence[Credentials]):
         pass
 
     def remove_configured_credentials(self):