diff --git a/requirements.txt b/requirements.txt
index f98631c..ec32b0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,16 @@
-appdirs~=1.4.4
-beautifulsoup4~=4.11.1
-bleach~=5.0.1
-CacheControl~=0.12.11
-funcy~=1.17
-lxml~=4.9.1
-requests~=2.28.1
-setuptools~=65.5.0
\ No newline at end of file
+appdirs==1.4.4
+beautifulsoup4==4.12.2
+bleach==6.0.0
+CacheControl==0.13.1
+certifi==2023.7.22
+charset-normalizer==3.2.0
+filelock==3.12.3
+funcy==2.0
+idna==3.4
+lxml==4.9.3
+msgpack==1.0.5
+requests==2.31.0
+six==1.16.0
+soupsieve==2.4.1
+urllib3==2.0.4
+webencodings==0.5.1
diff --git a/src/any2rss/html_cleanup.py b/src/any2rss/html_cleanup.py
index 1972854..3a0d5e6 100644
--- a/src/any2rss/html_cleanup.py
+++ b/src/any2rss/html_cleanup.py
@@ -8,8 +8,7 @@
 from .api import HTML
 
 _cleaner = bleach.sanitizer.Cleaner(
-    tags=bleach.sanitizer.ALLOWED_TAGS
-    + ["img", "div", "h1", "h2", "h3", "h4", "h5", "p", "br"],
+    tags=bleach.sanitizer.ALLOWED_TAGS.union(["img", "div", "h1", "h2", "h3", "h4", "h5", "p", "br"]),
     attributes=bleach.sanitizer.ALLOWED_ATTRIBUTES | {"img": ["src"]},
 )