diff --git a/docker-compose.yml b/docker-compose.yml
index a72bb82..27d2969 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -26,7 +26,7 @@ services:
     build:
       context: .
       dockerfile: ./docker/django
-    command: celery worker --app newsreader --loglevel INFO --beat --scheduler django --workdir /app/src/
+    command: celery worker -n worker1@%h -n worker2@%h --app newsreader --loglevel INFO --concurrency 2 --workdir /app/src/ --beat --scheduler django
     environment:
       - DJANGO_SETTINGS_MODULE=newsreader.conf.docker
     depends_on:
diff --git a/src/newsreader/js/pages/homepage/components/sidebar/CategoryItem.js b/src/newsreader/js/pages/homepage/components/sidebar/CategoryItem.js
index 7c0268c..563f8ad 100644
--- a/src/newsreader/js/pages/homepage/components/sidebar/CategoryItem.js
+++ b/src/newsreader/js/pages/homepage/components/sidebar/CategoryItem.js
@@ -40,8 +40,8 @@ class CategoryItem extends React.Component {
           </div>
 
           <div className="category__info" onClick={() => this.handleSelect()}>
-            <span>{this.props.category.name}</span>
-            <span className="badge">{this.props.category.unread}</span>
+            <span className="category__name">{this.props.category.name}</span>
+            <span className="badge category__badge">{this.props.category.unread}</span>
           </div>
         </div>
 
diff --git a/src/newsreader/news/core/admin.py b/src/newsreader/news/core/admin.py
index 3bcfc19..e8c3c4b 100644
--- a/src/newsreader/news/core/admin.py
+++ b/src/newsreader/news/core/admin.py
@@ -1,21 +1,35 @@
 from django.contrib import admin
+from django.db import models
+from django.forms import Textarea, TextInput, URLInput
 
 from newsreader.news.core.models import Category, Post
 
 
 class PostAdmin(admin.ModelAdmin):
-    list_display = ("publication_date", "author", "rule", "title")
+    list_display = ("publication_date", "rule", "title")
     list_display_links = ("title",)
     list_filter = ("rule",)
 
     ordering = ("-publication_date", "title")
 
-    fields = ("title", "body", "author", "publication_date", "url")
+    fields = (
+        "remote_identifier",
+        "rule",
+        "url",
+        "title",
+        "body",
+        "publication_date",
+        "author",
+    )
 
-    search_fields = ["title"]
+    readonly_fields = ("remote_identifier", "rule")
+    search_fields = ("title", "author", "rule__name")
 
-    def rule(self, obj):
-        return obj.rule
+    formfield_overrides = {
+        models.CharField: {"widget": TextInput(attrs={"size": "100"})},
+        models.URLField: {"widget": URLInput(attrs={"size": "100"})},
+        models.TextField: {"widget": Textarea(attrs={"rows": 10, "cols": 100})},
+    }
 
 
 class CategoryAdmin(admin.ModelAdmin):
diff --git a/src/newsreader/scss/components/category/_category.scss b/src/newsreader/scss/components/category/_category.scss
index 683ed0b..e8e1ba9 100644
--- a/src/newsreader/scss/components/category/_category.scss
+++ b/src/newsreader/scss/components/category/_category.scss
@@ -14,16 +14,18 @@
     overflow: hidden;
     white-space: nowrap;
 
-    & h4 {
-      overflow: hidden;
-      text-overflow: ellipsis;
-    }
 
     &:hover {
       cursor: pointer;
     }
   }
 
+  &__name {
+    overflow: hidden;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+  }
+
   &__menu {
     display: flex;
     align-items: center;