diff --git a/src/poetry/utils/password_manager.py b/src/poetry/utils/password_manager.py
index 53c42910ba7..b15eed475df 100644
--- a/src/poetry/utils/password_manager.py
+++ b/src/poetry/utils/password_manager.py
@@ -46,9 +46,14 @@ def get_credential(
             return default
 
         import keyring
+        import keyring.errors
 
         for name in names:
-            credential = keyring.get_credential(name, username)
+            try:
+                credential = keyring.get_credential(name, username)
+            except keyring.errors.KeyringLocked:
+                self._is_available = False
+                break
             if credential:
                 return HTTPAuthCredential(
                     username=credential.username, password=credential.password