diff --git a/ci/release/download_deps.py b/ci/release/download_deps.py
index 9fbd6aef2..afed42465 100755
--- a/ci/release/download_deps.py
+++ b/ci/release/download_deps.py
@@ -113,8 +113,8 @@
     # While boost is available on GitHub, the sub-libraries are in separate repos.
     'beautifulsoup4':
         lambda name,
-        ver:
-        f"https://www.crummy.com/software/BeautifulSoup/bs4/download/{'.'.join(ver.split('.')[:-1])}/{name}-{ver}.tar.gz",
+        ver: ("https://www.crummy.com/software/BeautifulSoup/bs4/download/"
+              f"{'.'.join(ver.split('.')[:-1])}/{name}-{ver}.tar.gz"),
 }
 
 # Please keep sorted