diff --git a/CHANGELOG.md b/CHANGELOG.md
index b34b3ee..491d8e9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -436,3 +436,9 @@
 * [BUGFIX] Storage: Fix crash caused by incorrect mixed samples handling. #13055
 * [BUGFIX] TSDB: Fix compactor failures by adding min time to histogram chunks. #13062
 
+[1.27.1]
+* Update Prometheus to 2.48.1
+* [Full changelog](https://github.com/prometheus/prometheus/releases/tag/v2.48.1)
+* [BUGFIX] TSDB: Make the wlog watcher read segments synchronously when not tailing. #13224
+* [BUGFIX] Agent: Participate in notify calls (fixes slow down in remote write handling introduced in 2.45). #13223
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index a58f1fe..9a364c9 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -1,6 +1,6 @@
 {
-  "version": "1.27.0",
-  "upstreamVersion": "2.48.0",
+  "version": "1.27.1",
+  "upstreamVersion": "2.48.1",
   "id": "io.prometheus.cloudronapp",
   "title": "Prometheus Server",
   "author": "Prometheus Developers",
diff --git a/test/package-lock.json b/test/package-lock.json
index 66b1311..1a01db5 100644
--- a/test/package-lock.json
+++ b/test/package-lock.json
@@ -14,7 +14,7 @@
       "devDependencies": {
         "expect.js": "^0.3.1",
         "mocha": "^10.2.0",
-        "selenium-webdriver": "^4.15.0"
+        "selenium-webdriver": "^4.16.0"
       }
     },
     "node_modules/@testim/chrome-version": {
@@ -1112,9 +1112,9 @@
       ]
     },
     "node_modules/selenium-webdriver": {
-      "version": "4.15.0",
-      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.15.0.tgz",
-      "integrity": "sha512-BNG1bq+KWiBGHcJ/wULi0eKY0yaDqFIbEmtbsYJmfaEghdCkXBsx1akgOorhNwjBipOr0uwpvNXqT6/nzl+zjg==",
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.16.0.tgz",
+      "integrity": "sha512-IbqpRpfGE7JDGgXHJeWuCqT/tUqnLvZ14csSwt+S8o4nJo3RtQoE9VR4jB47tP/A8ArkYsh/THuMY6kyRP6kuA==",
       "dev": true,
       "dependencies": {
         "jszip": "^3.10.1",
@@ -2179,9 +2179,9 @@
       "dev": true
     },
     "selenium-webdriver": {
-      "version": "4.15.0",
-      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.15.0.tgz",
-      "integrity": "sha512-BNG1bq+KWiBGHcJ/wULi0eKY0yaDqFIbEmtbsYJmfaEghdCkXBsx1akgOorhNwjBipOr0uwpvNXqT6/nzl+zjg==",
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.16.0.tgz",
+      "integrity": "sha512-IbqpRpfGE7JDGgXHJeWuCqT/tUqnLvZ14csSwt+S8o4nJo3RtQoE9VR4jB47tP/A8ArkYsh/THuMY6kyRP6kuA==",
       "dev": true,
       "requires": {
         "jszip": "^3.10.1",
diff --git a/test/package.json b/test/package.json
index f27aaf6..a650e35 100644
--- a/test/package.json
+++ b/test/package.json
@@ -11,7 +11,7 @@
   "devDependencies": {
     "expect.js": "^0.3.1",
     "mocha": "^10.2.0",
-    "selenium-webdriver": "^4.15.0"
+    "selenium-webdriver": "^4.16.0"
   },
   "dependencies": {
     "chromedriver": "^119.0.1"