diff --git a/cloud-run/Dockerfile b/cloud-run/Dockerfile
index 66b2755..5852eb3 100644
--- a/cloud-run/Dockerfile
+++ b/cloud-run/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/vivliostyle/cli:8.10.0
+FROM ghcr.io/vivliostyle/cli:8.12.0
 LABEL maintainer "Vivliostyle Foundation <mail@vivliostyle.org>"
 
 WORKDIR /usr/src/app
diff --git a/web/package.json b/web/package.json
index bfa601a..35b5938 100644
--- a/web/package.json
+++ b/web/package.json
@@ -58,7 +58,7 @@
     "@octokit/graphql": "^4.8.0",
     "@octokit/rest": "^18.12.0",
     "@vivliostyle/vfm": "2.2.1",
-    "@vivliostyle/viewer": "2.29.0",
+    "@vivliostyle/viewer": "2.30.0",
     "apollo-server-micro": "^3.6.2",
     "chakra-ui-contextmenu": "^1.0.3",
     "dotenv": "^14.3.2",
diff --git a/web/yarn.lock b/web/yarn.lock
index 13ee85d..f1e16c3 100644
--- a/web/yarn.lock
+++ b/web/yarn.lock
@@ -3538,10 +3538,10 @@
   resolved "https://registry.yarnpkg.com/@ungap/structured-clone/-/structured-clone-1.2.0.tgz#756641adb587851b5ccb3e095daf27ae581c8406"
   integrity sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==
 
-"@vivliostyle/core@^2.29.0":
-  version "2.29.0"
-  resolved "https://registry.yarnpkg.com/@vivliostyle/core/-/core-2.29.0.tgz#c57456c441597d523a4272be4bc5505df4dc6cbb"
-  integrity sha512-6Z5KjcQ73+5ffWrBXm9Y+fKLAgM/n0qMpEfJNJT44tsxiK+K/jpgMqgc+yzIVQJlK7wYUH8s5apJ79Ny5aGJXQ==
+"@vivliostyle/core@^2.30.0":
+  version "2.30.0"
+  resolved "https://registry.yarnpkg.com/@vivliostyle/core/-/core-2.30.0.tgz#d4c61d5c2221a252577848665218d1e7d99d205f"
+  integrity sha512-DDpsH0lmNRSow4Hq3aBlW46cC0K9pPTK00YYzgfin+dEg4uVY0jpt1V1Ne5+yim49U5kyrCLCs+s6LxrPx6Vyg==
   dependencies:
     fast-diff "^1.2.0"
 
@@ -3584,12 +3584,12 @@
     unist-util-visit "^2.0.3"
     unist-util-visit-parents "^3.1.1"
 
-"@vivliostyle/viewer@2.29.0":
-  version "2.29.0"
-  resolved "https://registry.yarnpkg.com/@vivliostyle/viewer/-/viewer-2.29.0.tgz#2f1e4c1bbcf0a27efa4230971694c1d5c52a8828"
-  integrity sha512-GoGSjVmV1p7mjQm1FlpO9UdYimOCUVhTqGp3wpC6KbVEL2I5Gj2T+1LOUouxO8/JXtSr8mXaSx6go5BXBI+tEw==
+"@vivliostyle/viewer@2.30.0":
+  version "2.30.0"
+  resolved "https://registry.yarnpkg.com/@vivliostyle/viewer/-/viewer-2.30.0.tgz#0406edd0920b989c9aee07f8e361cb1610a62b21"
+  integrity sha512-SC3fHogmGcOAqpAiCvr6YI2UwTz7jDmRcKWym0tt4tSg01pf259/uzj4FWm6Uw/0HQnVjBDT3CRHc5stxSM/fg==
   dependencies:
-    "@vivliostyle/core" "^2.29.0"
+    "@vivliostyle/core" "^2.30.0"
     i18next-ko "^3.0.1"
     knockout "^3.5.0"