diff --git a/lerna.json b/lerna.json
index 7475a7e1f..c44b515c0 100644
--- a/lerna.json
+++ b/lerna.json
@@ -2,5 +2,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "2.5.1"
+  "version": "2.5.2"
 }
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 8af245b69..3e5111244 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ampproject/toolbox-cli",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "A Command Line Interface (CLI) for amp-toolbox",
   "main": "index.js",
   "bin": {
@@ -30,8 +30,8 @@
     "@ampproject/toolbox-cache-list": "^2.5.1",
     "@ampproject/toolbox-cache-url": "^2.3.0",
     "@ampproject/toolbox-core": "^2.5.1",
-    "@ampproject/toolbox-linter": "^2.5.1",
-    "@ampproject/toolbox-optimizer": "^2.5.1",
+    "@ampproject/toolbox-linter": "^2.5.2",
+    "@ampproject/toolbox-optimizer": "^2.5.2",
     "@ampproject/toolbox-runtime-fetch": "^2.5.1",
     "@ampproject/toolbox-runtime-version": "^2.5.1",
     "@ampproject/toolbox-update-cache": "^2.5.1",
diff --git a/packages/linter/package.json b/packages/linter/package.json
index cbe3321ab..ec0142129 100644
--- a/packages/linter/package.json
+++ b/packages/linter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ampproject/toolbox-linter",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "A linter for AMP documents",
   "repository": {
     "type": "git",
diff --git a/packages/optimizer-express/package.json b/packages/optimizer-express/package.json
index fe5716416..ccfc72d20 100644
--- a/packages/optimizer-express/package.json
+++ b/packages/optimizer-express/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ampproject/toolbox-optimizer-express",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "Express middleware for @ampproject/toolbox-optimizer",
   "main": "index.js",
   "repository": {
@@ -25,7 +25,7 @@
   "homepage": "https://github.com/ampproject/amp-toolbox/tree/master/packages/optimizer-express",
   "dependencies": {
     "@ampproject/toolbox-core": "^2.5.1",
-    "@ampproject/toolbox-optimizer": "^2.5.1",
+    "@ampproject/toolbox-optimizer": "^2.5.2",
     "@ampproject/toolbox-runtime-version": "^2.5.1",
     "mime-types": "2.1.27",
     "whatwg-url": "8.1.0"
diff --git a/packages/optimizer/package-lock.json b/packages/optimizer/package-lock.json
index 78f3e0ae2..06761827f 100644
--- a/packages/optimizer/package-lock.json
+++ b/packages/optimizer/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@ampproject/toolbox-optimizer",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/packages/optimizer/package.json b/packages/optimizer/package.json
index c74dd5df8..103433217 100644
--- a/packages/optimizer/package.json
+++ b/packages/optimizer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@ampproject/toolbox-optimizer",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "Server-side rendering for AMPs.",
   "main": "index.js",
   "repository": {