diff --git a/fet2020/documents/api.py b/fet2020/documents/api.py
index 0e36a7a4..be16ce35 100644
--- a/fet2020/documents/api.py
+++ b/fet2020/documents/api.py
@@ -28,7 +28,7 @@ def get_ep_client():
     except Exception as e:
         logger.info("Can't get connection to Etherpad Server. Error: {}".format(e))
         raise e
-        return None,None
+        return None, None
 
     return epc, group
 
diff --git a/fet2020/posts/models.py b/fet2020/posts/models.py
index 25b3a0c2..27a54749 100644
--- a/fet2020/posts/models.py
+++ b/fet2020/posts/models.py
@@ -105,7 +105,7 @@ class Post(models.Model):
         try:
             html = getPadHTML(self.agenda_key)
         except Exception as e:
-            logger.error("Can't get the agenda html from agenda key '{}'. Error: {}".format(self.agenda_key, e))
+            logger.error("Can't get the agenda html from agenda '{}'. Error: {}".format(self.agenda_key, e))
             html = None
 
         return html
diff --git a/fet2020/requirements.txt b/fet2020/requirements.txt
index 2ee39ebc..dd9cc063 100644
--- a/fet2020/requirements.txt
+++ b/fet2020/requirements.txt
@@ -2,7 +2,7 @@ django==3.1.2
 django-ckeditor==6.0.0
 django-crontab==0.7.1
 django-environ==0.4.5
-django-filter==2.3.0
+django-filter==2.4.0
 django-static-jquery-ui==1.12.1.1
 django-taggit==1.3.0
 djangorestframework==3.12.1