diff --git a/jupyter_server/auth/security.py b/jupyter_server/auth/security.py
index a5ae185f1e..ede64db522 100644
--- a/jupyter_server/auth/security.py
+++ b/jupyter_server/auth/security.py
@@ -41,7 +41,7 @@ def passwd(passphrase=None, algorithm="argon2"):
 
     Examples
     --------
-    >>> passwd('mypassword')  # doctest: +ELLIPSIS
+    >>> passwd("mypassword")  # doctest: +ELLIPSIS
     'argon2:...'
 
     """
@@ -93,15 +93,14 @@ def passwd_check(hashed_passphrase, passphrase):
 
     Examples
     --------
-    >>> myhash = passwd('mypassword')
-    >>> passwd_check(myhash, 'mypassword')
+    >>> myhash = passwd("mypassword")
+    >>> passwd_check(myhash, "mypassword")
     True
 
-    >>> passwd_check(myhash, 'otherpassword')
+    >>> passwd_check(myhash, "otherpassword")
     False
 
-    >>> passwd_check('sha1:0e112c3ddfce:a68df677475c2b47b6e86d0467eec97ac5f4b85a',
-    ...              'mypassword')
+    >>> passwd_check("sha1:0e112c3ddfce:a68df677475c2b47b6e86d0467eec97ac5f4b85a", "mypassword")
     True
     """
     if hashed_passphrase.startswith("argon2:"):
diff --git a/jupyter_server/utils.py b/jupyter_server/utils.py
index 2a4c185d97..968d1fd27c 100644
--- a/jupyter_server/utils.py
+++ b/jupyter_server/utils.py
@@ -344,11 +344,11 @@ def filefind(filename: str, path_dirs: Sequence[str] | str | None = None) -> str
     path dirs is given, the filename is tested as is, after running through
     :func:`expandvars` and :func:`expanduser`.  Thus a simple call::
 
-        filefind('myfile.txt')
+        filefind("myfile.txt")
 
     will find the file in the current working dir, but::
 
-        filefind('~/myfile.txt')
+        filefind("~/myfile.txt")
 
     Will find the file in the users home directory.  This function does not
     automatically try any paths, such as the cwd or the user's home directory.