diff --git a/CHANGELOG b/CHANGELOG.md
similarity index 99%
rename from CHANGELOG
rename to CHANGELOG.md
index 36c068c..d6000cf 100644
--- a/CHANGELOG
+++ b/CHANGELOG.md
@@ -671,3 +671,7 @@
 [1.49.1]
 * Add oidc module
 
+[1.49.2]
+* Update Synapse to 1.66.0
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.66.0)
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index 4150815..4fbb4bb 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -3,10 +3,10 @@
   "title": "Matrix Synapse",
   "author": "Matrix synapse authors",
   "description": "file://DESCRIPTION.md",
-  "changelog": "file://CHANGELOG",
+  "changelog": "file://CHANGELOG.md",
   "tagline": "Secure & decentralized communication",
-  "version": "1.49.1",
-  "upstreamVersion": "1.65.0",
+  "version": "1.49.2",
+  "upstreamVersion": "1.65.1",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/Dockerfile b/Dockerfile
index 315958a..b044027 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN virtualenv -p python3 /app/code/env
 ENV VIRTUAL_ENV=/app/code/env
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
-ARG VERSION=v1.65.0
+ARG VERSION=v1.66.0
 
 # Synapse (https://github.com/matrix-org/synapse/blob/master/INSTALL.md)
 # lxml - required for previews
diff --git a/test/package-lock.json b/test/package-lock.json
index 675b020..e1f6624 100644
--- a/test/package-lock.json
+++ b/test/package-lock.json
@@ -9,11 +9,11 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
-        "chromedriver": "^103.0.0",
+        "chromedriver": "^104.0.0",
         "expect.js": "^0.3.1",
         "mocha": "^10.0.0",
         "selenium-server-standalone-jar": "^3.141.59",
-        "selenium-webdriver": "^4.3.1",
+        "selenium-webdriver": "^4.4.0",
         "superagent": "^8.0.0"
       }
     },
@@ -293,9 +293,9 @@
       }
     },
     "node_modules/chromedriver": {
-      "version": "103.0.0",
-      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-103.0.0.tgz",
-      "integrity": "sha512-7BHf6HWt0PeOHCzWO8qlnD13sARzr5AKTtG8Csn+czsuAsajwPxdLNtry5GPh8HYFyl+i0M+yg3bT43AGfgU9w==",
+      "version": "104.0.0",
+      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-104.0.0.tgz",
+      "integrity": "sha512-zbHZutN2ATo19xA6nXwwLn+KueD/5w8ap5m4b6bCb8MIaRFnyDwMbFoy7oFAjlSMpCFL3KSaZRiWUwjj//N3yQ==",
       "hasInstallScript": true,
       "dependencies": {
         "@testim/chrome-version": "^1.1.2",
@@ -1446,9 +1446,9 @@
       "integrity": "sha512-gh7LagmKMkthQZo0q9qrDSWy+ISYnCUhOUW6IyRQIMGdg8Os/uMfChTDO17DYzxKmNIDx/h6+yfBj34QYALycw=="
     },
     "node_modules/selenium-webdriver": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.3.1.tgz",
-      "integrity": "sha512-TjH/ls1WKRQoFEHcqtn6UtwcLnA3yvx08v9cSSFYvyhp8hJWRtbe9ae2I8uXPisEZ2EaGKKoxBZ4EHv0BJM15g==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.4.0.tgz",
+      "integrity": "sha512-Du+/xfpvNi9zHAeYgXhOWN9yH0hph+cuX+hHDBr7d+SbtQVcfNJwBzLsbdHrB1Wh7MHXFuIkSG88A9TRRQUx3g==",
       "dependencies": {
         "jszip": "^3.10.0",
         "tmp": "^0.2.1",
@@ -1976,9 +1976,9 @@
       }
     },
     "chromedriver": {
-      "version": "103.0.0",
-      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-103.0.0.tgz",
-      "integrity": "sha512-7BHf6HWt0PeOHCzWO8qlnD13sARzr5AKTtG8Csn+czsuAsajwPxdLNtry5GPh8HYFyl+i0M+yg3bT43AGfgU9w==",
+      "version": "104.0.0",
+      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-104.0.0.tgz",
+      "integrity": "sha512-zbHZutN2ATo19xA6nXwwLn+KueD/5w8ap5m4b6bCb8MIaRFnyDwMbFoy7oFAjlSMpCFL3KSaZRiWUwjj//N3yQ==",
       "requires": {
         "@testim/chrome-version": "^1.1.2",
         "axios": "^0.27.2",
@@ -2782,9 +2782,9 @@
       "integrity": "sha512-gh7LagmKMkthQZo0q9qrDSWy+ISYnCUhOUW6IyRQIMGdg8Os/uMfChTDO17DYzxKmNIDx/h6+yfBj34QYALycw=="
     },
     "selenium-webdriver": {
-      "version": "4.3.1",
-      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.3.1.tgz",
-      "integrity": "sha512-TjH/ls1WKRQoFEHcqtn6UtwcLnA3yvx08v9cSSFYvyhp8hJWRtbe9ae2I8uXPisEZ2EaGKKoxBZ4EHv0BJM15g==",
+      "version": "4.4.0",
+      "resolved": "https://registry.npmjs.org/selenium-webdriver/-/selenium-webdriver-4.4.0.tgz",
+      "integrity": "sha512-Du+/xfpvNi9zHAeYgXhOWN9yH0hph+cuX+hHDBr7d+SbtQVcfNJwBzLsbdHrB1Wh7MHXFuIkSG88A9TRRQUx3g==",
       "requires": {
         "jszip": "^3.10.0",
         "tmp": "^0.2.1",
diff --git a/test/package.json b/test/package.json
index 282cc93..3611536 100644
--- a/test/package.json
+++ b/test/package.json
@@ -9,11 +9,11 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "chromedriver": "^103.0.0",
+    "chromedriver": "^104.0.0",
     "expect.js": "^0.3.1",
     "mocha": "^10.0.0",
     "selenium-server-standalone-jar": "^3.141.59",
-    "selenium-webdriver": "^4.3.1",
+    "selenium-webdriver": "^4.4.0",
     "superagent": "^8.0.0"
   }
 }