diff --git a/lnbits/extensions/gerty/helpers.py b/lnbits/extensions/gerty/helpers.py
index 5897423e..8c2cc9ea 100644
--- a/lnbits/extensions/gerty/helpers.py
+++ b/lnbits/extensions/gerty/helpers.py
@@ -390,9 +390,7 @@ async def api_get_mining_stat(stat_slug: str, gerty):
         r = await get_mempool_info("hashrate_1m", gerty)
         data = r
         stat["current"] = data["currentDifficulty"]
-        stat["previous"] = data["difficulty"][len(data["difficulty"]) - 2][
-            "difficulty"
-        ]
+        stat["previous"] = data["difficulty"][len(data["difficulty"]) - 2]["difficulty"]
     return stat
 
 
@@ -946,5 +944,3 @@ async def get_mempool_stat(stat_slug: str, gerty):
                 )
             )
     return text
-
-
diff --git a/lnbits/extensions/gerty/views.py b/lnbits/extensions/gerty/views.py
index 238e3721..33e95d3e 100644
--- a/lnbits/extensions/gerty/views.py
+++ b/lnbits/extensions/gerty/views.py
@@ -1,6 +1,6 @@
 from http import HTTPStatus
 
-from fastapi import Request, Depends
+from fastapi import Depends, Request
 from fastapi.templating import Jinja2Templates
 from starlette.exceptions import HTTPException
 from starlette.responses import HTMLResponse
diff --git a/lnbits/extensions/gerty/views_api.py b/lnbits/extensions/gerty/views_api.py
index 81c84c1d..62e92b75 100644
--- a/lnbits/extensions/gerty/views_api.py
+++ b/lnbits/extensions/gerty/views_api.py
@@ -1,7 +1,7 @@
 import json
 from http import HTTPStatus
 
-from fastapi import Query, Depends
+from fastapi import Depends, Query
 from loguru import logger
 from starlette.exceptions import HTTPException
 
@@ -17,7 +17,6 @@ from .crud import (
     get_mempool_info,
     update_gerty,
 )
-
 from .helpers import *
 from .models import Gerty