diff --git a/bookwyrm/settings.py b/bookwyrm/settings.py
index 3090d27f5..5967b010b 100644
--- a/bookwyrm/settings.py
+++ b/bookwyrm/settings.py
@@ -207,7 +207,10 @@ REDIS_ACTIVITY_HOST = env("REDIS_ACTIVITY_HOST", "localhost")
 REDIS_ACTIVITY_PORT = env("REDIS_ACTIVITY_PORT", 6379)
 REDIS_ACTIVITY_PASSWORD = env("REDIS_ACTIVITY_PASSWORD", None)
 REDIS_ACTIVITY_DB_INDEX = env("REDIS_ACTIVITY_DB_INDEX", 0)
-REDIS_ACTIVITY_URL = env("REDIS_ACTIVITY_URL", f"redis://:{REDIS_ACTIVITY_PASSWORD}@{REDIS_ACTIVITY_HOST}:{REDIS_ACTIVITY_PORT}/{REDIS_ACTIVITY_DB_INDEX}")
+REDIS_ACTIVITY_URL = env(
+    "REDIS_ACTIVITY_URL",
+    f"redis://:{REDIS_ACTIVITY_PASSWORD}@{REDIS_ACTIVITY_HOST}:{REDIS_ACTIVITY_PORT}/{REDIS_ACTIVITY_DB_INDEX}"
+)
 MAX_STREAM_LENGTH = int(env("MAX_STREAM_LENGTH", 200))
 
 STREAMS = [
diff --git a/celerywyrm/settings.py b/celerywyrm/settings.py
index 3b6dc998a..146699f53 100644
--- a/celerywyrm/settings.py
+++ b/celerywyrm/settings.py
@@ -8,10 +8,13 @@ REDIS_BROKER_PASSWORD = requests.utils.quote(env("REDIS_BROKER_PASSWORD", None))
 REDIS_BROKER_HOST = env("REDIS_BROKER_HOST", "redis_broker")
 REDIS_BROKER_PORT = env("REDIS_BROKER_PORT", 6379)
 REDIS_BROKER_DB_INDEX = env("REDIS_BROKER_DB_INDEX", 0)
-REDIS_BROKER_URL = env("REDIS_BROKER_URL",f"redis://:{REDIS_BROKER_PASSWORD}@{REDIS_BROKER_HOST}:{REDIS_BROKER_PORT}/{REDIS_BROKER_DB_INDEX}")
+REDIS_BROKER_URL = env(
+    "REDIS_BROKER_URL",
+    f"redis://:{REDIS_BROKER_PASSWORD}@{REDIS_BROKER_HOST}:{REDIS_BROKER_PORT}/{REDIS_BROKER_DB_INDEX}"
+)
 
-CELERY_BROKER_URL = REDIS_BROKER_URL.replace("unix:","redis+socket:")
-CELERY_RESULT_BACKEND = REDIS_BROKER_URL.replace("unix:","redis+socket:")
+CELERY_BROKER_URL = REDIS_BROKER_URL.replace("unix:", "redis+socket:")
+CELERY_RESULT_BACKEND = REDIS_BROKER_URL.replace("unix:", "redis+socket:")
 
 CELERY_DEFAULT_QUEUE = "low_priority"
 CELERY_CREATE_MISSING_QUEUES = True