diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index ec61a64..94498c2 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,13 +18,13 @@ repos:
     -   id: check-docstring-first # checks a common error of defining a docstring after code
     -   id: debug-statements # checks for debugger imports and py37+ `breakpoint()` calls in python source
 -   repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 25.9.0
+    rev: 26.1.0
     hooks:
     -   id: black
         name: black for fits-finder
         args: ["--config=./fits-finder/pyproject.toml", "./fits-finder"]
 -   repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: 'v0.14.3'
+    rev: 'v0.14.13'
     hooks:
     -   id: ruff
         name: ruff for fits-finder
diff --git a/fits-finder/fits_finder/config.py b/fits-finder/fits_finder/config.py
index 728d754..49eedd7 100644
--- a/fits-finder/fits_finder/config.py
+++ b/fits-finder/fits_finder/config.py
@@ -1,7 +1,6 @@
 import os
 from collections import defaultdict
 
-
 ZTF_DR_DB_API_BASE_URL = os.environ.get("ZTF_DR_DB_API_BASE_URL", "https://db.ztf.snad.space")
 ZTF_FITS_PRODUCTS_URL = os.environ.get("FITS_PRODUCTS_URL", "https://fits.ztf.snad.space/products/sci")
 
diff --git a/fits-finder/fits_finder/date_with_frac.py b/fits-finder/fits_finder/date_with_frac.py
index a12b59b..9f0ca33 100644
--- a/fits-finder/fits_finder/date_with_frac.py
+++ b/fits-finder/fits_finder/date_with_frac.py
@@ -8,7 +8,6 @@
 from .config import ZTF_FITS_PRODUCTS_URL
 from .http_client import http_client
 
-
 PALOMAR = EarthLocation(lon=-116.863, lat=33.356, height=1706)  # EarthLocation.of_site('Palomar')
 
 
diff --git a/fits-finder/fits_finder/http_client.py b/fits-finder/fits_finder/http_client.py
index 5edc9c5..cd14ffe 100644
--- a/fits-finder/fits_finder/http_client.py
+++ b/fits-finder/fits_finder/http_client.py
@@ -1,6 +1,5 @@
 from httpx import AsyncClient, Limits
 
-
 # https://stackoverflow.com/a/74397436/5437597
 
 
diff --git a/fits-finder/fits_finder/main.py b/fits-finder/fits_finder/main.py
index 57249b7..1fcf029 100644
--- a/fits-finder/fits_finder/main.py
+++ b/fits-finder/fits_finder/main.py
@@ -6,7 +6,6 @@
 from . import root, v1
 from .http_client import http_client
 
-
 app = FastAPI(
     title="ZTF FITS Finder API by SNAD",
     version=metadata.version("ztf-fits-url-finder"),
diff --git a/fits-finder/fits_finder/root.py b/fits-finder/fits_finder/root.py
index 3ee3f4c..714dfca 100644
--- a/fits-finder/fits_finder/root.py
+++ b/fits-finder/fits_finder/root.py
@@ -3,14 +3,12 @@
 from fastapi import APIRouter
 from fastapi.responses import HTMLResponse
 
-
 router = APIRouter()
 
 
 @router.get("/", include_in_schema=False)
 def homepage() -> HTMLResponse:
-    return HTMLResponse(
-        content=f"""
+    return HTMLResponse(content=f"""
 <p>
     Welcome to <a href="SNAD">SNAD</a> API server for the ZTF FITS files look-ups.
 </p>
@@ -20,5 +18,4 @@ def homepage() -> HTMLResponse:
 <p>
     See source code as a part of <a href="{metadata.metadata("ztf-fits-url-finder")["Repository"]}"><font face="monospace">ztf-fits-proxy</font></a> project on GitHub.
 </p>
-"""  # noqa: E501
-    )
+""")  # noqa: E501
diff --git a/fits-finder/fits_finder/v1.py b/fits-finder/fits_finder/v1.py
index 3e91364..80757ee 100644
--- a/fits-finder/fits_finder/v1.py
+++ b/fits-finder/fits_finder/v1.py
@@ -12,7 +12,6 @@
 from .date_with_frac import DateWithFrac
 from .ztf_db import get_by_oid
 
-
 router = APIRouter()
 
 FILE_SUFFIXES = [
diff --git a/proxy-cache-filler/proxy_cache_filler.py b/proxy-cache-filler/proxy_cache_filler.py
index 18d3d5c..cb1fdb7 100755
--- a/proxy-cache-filler/proxy_cache_filler.py
+++ b/proxy-cache-filler/proxy_cache_filler.py
@@ -6,7 +6,6 @@
 
 import requests
 
-
 BASE_URL = "http://ztf-fits-proxy/products/sci/"
 
 ZTFSTARTDATE = datetime(2017, 9, 26)