diff --git a/articles/assets.py b/articles/assets.py
index 134b8f0..03d70d7 100644
--- a/articles/assets.py
+++ b/articles/assets.py
@@ -3,14 +3,14 @@ from django_assets import Bundle, register
 public_no_code = Bundle(
     "newcss.css",
     "public.css",
-    filters="cssmin",
+    filters="rcssmin",
     output="public_bundled.css",
 )
 public_with_code = Bundle(
     "newcss.css",
     "codehilite.css",
     "public.css",
-    filters="cssmin",
+    filters="rcssmin",
     output="public_code_bundled.css",
 )
 register("public_no_code", public_no_code)
diff --git a/poetry.lock b/poetry.lock
index abdfd46..4625870 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -82,14 +82,6 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, <4"
 [package.extras]
 toml = ["toml"]
 
-[[package]]
-name = "cssmin"
-version = "0.2.0"
-description = "A Python port of the YUI CSS compression algorithm."
-category = "main"
-optional = false
-python-versions = "*"
-
 [[package]]
 name = "distlib"
 version = "0.3.1"
@@ -398,6 +390,14 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
+[[package]]
+name = "rcssmin"
+version = "1.0.6"
+description = "CSS Minifier"
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "requests"
 version = "2.25.0"
@@ -516,7 +516,7 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.8"
-content-hash = "29b49600a0a724f59d04d475a305c4f90541753ac0c0896a976feb096bc1b173"
+content-hash = "41e6bc3a3d9db68d1af27d90163e860bf821ffc86bf50a145fcad1763bb4fc1a"
 
 [metadata.files]
 appdirs = [
@@ -587,9 +587,6 @@ coverage = [
     {file = "coverage-5.3-cp39-cp39-win_amd64.whl", hash = "sha256:47a11bdbd8ada9b7ee628596f9d97fbd3851bd9999d398e9436bd67376dbece7"},
     {file = "coverage-5.3.tar.gz", hash = "sha256:280baa8ec489c4f542f8940f9c4c2181f0306a8ee1a54eceba071a449fb870a0"},
 ]
-cssmin = [
-    {file = "cssmin-0.2.0.tar.gz", hash = "sha256:e012f0cc8401efcf2620332339011564738ae32be8c84b2e43ce8beaec1067b6"},
-]
 distlib = [
     {file = "distlib-0.3.1-py2.py3-none-any.whl", hash = "sha256:8c09de2c67b3e7deef7184574fc060ab8a793e7adbb183d942c389c8b13c52fb"},
     {file = "distlib-0.3.1.zip", hash = "sha256:edf6116872c863e1aa9d5bb7cb5e05a022c519a4594dc703843343a9ddd9bff1"},
@@ -772,6 +769,9 @@ pyyaml = [
     {file = "PyYAML-5.3.1-cp38-cp38-win_amd64.whl", hash = "sha256:95f71d2af0ff4227885f7a6605c37fd53d3a106fcab511b8860ecca9fcf400ee"},
     {file = "PyYAML-5.3.1.tar.gz", hash = "sha256:b8eac752c5e14d3eca0e6dd9199cd627518cb5ec06add0de9d32baeee6fe645d"},
 ]
+rcssmin = [
+    {file = "rcssmin-1.0.6.tar.gz", hash = "sha256:ca87b695d3d7864157773a61263e5abb96006e9ff0e021eff90cbe0e1ba18270"},
+]
 requests = [
     {file = "requests-2.25.0-py2.py3-none-any.whl", hash = "sha256:e786fa28d8c9154e6a4de5d46a1d921b8749f8b74e28bde23768e5e16eece998"},
     {file = "requests-2.25.0.tar.gz", hash = "sha256:7f1a0b932f4a60a1a65caa4263921bb7d9ee911957e0ae4a23a6dd08185ad5f8"},
diff --git a/pyproject.toml b/pyproject.toml
index efe2509..474e7d0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ django-cleanup = "^5.0"
 requests = "^2.24"
 html2text = "^2020.1.16"
 django-assets = "^2.0"
-cssmin = "^0.2.0"
+rcssmin = "^1.0.6"
 
 [tool.poetry.dev-dependencies]
 pre-commit = "^2.7"