diff --git a/History.md b/History.md
index 35b484f..45e8e9d 100644
--- a/History.md
+++ b/History.md
@@ -1,4 +1,14 @@
-[5.5.0 / 2021-xx-xx](https://github.com/clean-css/clean-css-cli/compare/5.4...HEAD)
+[5.5.2 / 2022-01-28](https://github.com/clean-css/clean-css-cli/compare/v5.5.1...v5.5.2)
+==================
+
+* Bumps clean-css dependency to 5.2.4.
+
+[5.5.1 / 2022-01-26](https://github.com/clean-css/clean-css-cli/compare/v5.5.0...v5.5.1)
+==================
+
+* Bumps clean-css dependency to 5.2.3.
+
+[5.5.0 / 2021-12-08](https://github.com/clean-css/clean-css-cli/compare/5.4...v5.5.0)
 ==================
 
 * Adds a new `--watch` switch, which makes CLI re-run optimizations when watched file(s) change.
diff --git a/package-lock.json b/package-lock.json
index 15deb08..70fbe11 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "clean-css-cli",
-  "version": "5.4.2",
+  "version": "5.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -56,9 +56,9 @@
       }
     },
     "clean-css": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.2.2.tgz",
-      "integrity": "sha512-/eR8ru5zyxKzpBLv9YZvMXgTSSQn7AdkMItMYynsFgGwTveCRVam9IUPFloE85B4vAIj05IuKmmEoV7/AQjT0w==",
+      "version": "5.2.4",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-5.2.4.tgz",
+      "integrity": "sha512-nKseG8wCzEuji/4yrgM/5cthL9oTDc5UOQyFMvW/Q53oP6gLH690o1NbuTh6Y18nujr7BxlsFuS7gXLnLzKJGg==",
       "requires": {
         "source-map": "~0.6.0"
       },
diff --git a/package.json b/package.json
index 65176d4..fbda8d5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "clean-css-cli",
-  "version": "5.4.2",
+  "version": "5.5.2",
   "description": "A command-line interface to clean-css CSS optimization library",
   "scripts": {
     "check": "jshint ./bin/cleancss .",
@@ -35,7 +35,7 @@
   "homepage": "https://github.com/clean-css/clean-css-cli#readme",
   "dependencies": {
     "chokidar": "^3.5.2",
-    "clean-css": "^5.2.2",
+    "clean-css": "^5.2.4",
     "commander": "7.x",
     "glob": "^7.1.6"
   },