diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 849c31e..4944c77 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -6,8 +6,6 @@ updates:
       interval: "weekly"
     target-branch: "master"
   - package-ecosystem: "github-actions"
-    # Workflow files stored in the
-    # default location of `.github/workflows`
     directory: "/"
     schedule:
       interval: "weekly"
diff --git a/tracking/email_utils.py b/tracking/email_utils.py
index 19cc2c4..4585db0 100644
--- a/tracking/email_utils.py
+++ b/tracking/email_utils.py
@@ -3,9 +3,8 @@
 from imaplib import IMAP4_SSL
 
 
-def get_imap(mailbox='INBOX'):
-    """Instantiate a new IMAP object, login, and connect to a mailbox.
-    """
+def get_imap(mailbox="INBOX"):
+    """Instantiate a new IMAP object, login, and connect to a mailbox."""
     imap = IMAP4_SSL(settings.EMAIL_HOST)
     imap.login(settings.EMAIL_USER, settings.EMAIL_PASSWORD)
     imap.select(mailbox)
@@ -13,11 +12,10 @@ def get_imap(mailbox='INBOX'):
 
 
 def email_get_unread(imap, from_email_address):
-    """Returns (status, list of UIDs) of unread emails from a sending email address.
-    """
+    """Returns (status, list of UIDs) of unread emails from a sending email address."""
     search = '(UNSEEN UNFLAGGED FROM "{}")'.format(from_email_address)
     status, response = imap.search(None, search)
-    if status != 'OK':
+    if status != "OK":
         return status, response
     # Return status and list of unread email UIDs.
     return status, response[0].split()
@@ -28,44 +26,40 @@ def email_fetch(imap, uid):
     Email is returned as an email.Message class object.
     """
     message = None
-    status, response = imap.fetch(str(uid), '(BODY.PEEK[])')
+    status, response = imap.fetch(str(uid), "(BODY.PEEK[])")
 
-    if status != 'OK':
+    if status != "OK":
         return status, response
 
     for i in response:
         if isinstance(i, tuple):
             s = i[1]
             if isinstance(s, bytes):
-                s = s.decode('utf-8')
+                s = s.decode("utf-8")
             message = email.message_from_string(s)
 
     return status, message
 
 
 def email_mark_read(imap, uid):
-    """Flag an email as 'Seen' based on passed-in UID.
-    """
-    status, response = imap.store(str(uid), '+FLAGS', '\Seen')
+    """Flag an email as 'Seen' based on passed-in UID."""
+    status, response = imap.store(str(uid), "+FLAGS", r"\Seen")
     return status, response
 
 
 def email_mark_unread(imap, uid):
-    """Remove the 'Seen' flag from an email based on passed-in UID.
-    """
-    status, response = imap.store(str(uid), '-FLAGS', '\Seen')
+    """Remove the 'Seen' flag from an email based on passed-in UID."""
+    status, response = imap.store(str(uid), "-FLAGS", r"\Seen")
     return status, response
 
 
 def email_delete(imap, uid):
-    """Flag an email for deletion.
-    """
-    status, response = imap.store(str(uid), '+FLAGS', '\Deleted')
+    """Flag an email for deletion."""
+    status, response = imap.store(str(uid), "+FLAGS", r"\Deleted")
     return status, response
 
 
 def email_flag(imap, uid):
-    """Flag an email as unprocessable.
-    """
-    status, response = imap.store(str(uid), '+FLAGS', '\Flagged')
+    """Flag an email as unprocessable."""
+    status, response = imap.store(str(uid), "+FLAGS", r"\Flagged")
     return status, response