diff --git a/src/settings.py b/src/settings.py
index 355ee4e..f7b879c 100644
--- a/src/settings.py
+++ b/src/settings.py
@@ -17,19 +17,19 @@
 import boto3
 import os
 
-CONFIGFILE = "config.json"
+CONFIGFILE = 'config.json'
 
 
 def create_config():
     # create the config file if it does not exist
     try:
-        with open(CONFIGFILE, "r") as f:
+        with open(CONFIGFILE, 'r') as f:
             data = json.load(f)
     except FileNotFoundError:
-        with open(CONFIGFILE, "w") as f:
-            f.write("{}")
+        with open(CONFIGFILE, 'w') as f:
+            f.write('{}')
 
-    with open(CONFIGFILE, "r") as f:
+    with open(CONFIGFILE, 'r') as f:
         data = json.load(f)
 
     if "aws_access_key_id" not in data:
@@ -47,20 +47,20 @@ def create_config():
     if "check_for_updates" not in data:
         data["check_for_updates"] = True
 
-    with open(CONFIGFILE, "w") as f:
+    with open(CONFIGFILE, 'w') as f:
         json.dump(data, f, indent=4, sort_keys=True)
 
 
 def read_config():
-    with open(CONFIGFILE, "r") as f:
+    with open(CONFIGFILE, 'r') as f:
         return json.load(f)
 
 
 def save_config(key, value):
-    with open(CONFIGFILE, "r") as f:
+    with open(CONFIGFILE, 'r') as f:
         data = json.load(f)
         data[key] = value
-    with open(CONFIGFILE, "w") as f:
+    with open(CONFIGFILE, 'w') as f:
         json.dump(data, f, indent=4, sort_keys=True)