diff --git a/package.json b/package.json
index feebe75..755ec8b 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "glob": "^7.1.2",
     "gulp": "^4.0.0",
     "gulp-aigis": "https://github.com/TakuyaAbe/gulp-aigis#v1.3.1",
-    "gulp-changed": "^3.2.0",
+    "gulp-changed": "^4.0.0",
     "gulp-ejs": "^3.2.0",
     "gulp-eslint": "^5.0.0",
     "gulp-front-matter": "^1.3.0",
diff --git a/yarn.lock b/yarn.lock
index dc0070d..d774c49 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4962,16 +4962,15 @@ growl@1.10.5:
     node-aigis "git://github.com/TakuyaAbe/aigis#v1.4.2"
     through2 "^2.0.0"
 
-gulp-changed@^3.2.0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/gulp-changed/-/gulp-changed-3.2.0.tgz#cee9866d949e09187522523d6c65565f6e32bd7c"
-  integrity sha1-zumGbZSeCRh1IlI9bGVWX24yvXw=
+gulp-changed@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/gulp-changed/-/gulp-changed-4.0.0.tgz#6317372ecc99dbd1637ae855b985ba379e8c8a62"
+  integrity sha512-BiPKI25QMP48dMChfqPjKpv1a7BCT1ATg6ob2oKzS8iFE/gepVwwz3PgK4vvIOiUrPmhb/tDnXptZNHQ5kpB3g==
   dependencies:
-    make-dir "^1.1.0"
-    pify "^3.0.0"
-    plugin-error "^0.1.2"
+    make-dir "^3.0.0"
+    plugin-error "^1.0.1"
     replace-ext "^1.0.0"
-    through2 "^2.0.0"
+    through2 "^3.0.1"
     touch "^3.1.0"
 
 gulp-cli@^2.0.0:
@@ -7213,13 +7212,20 @@ lru-queue@0.1:
   dependencies:
     es5-ext "~0.10.2"
 
-make-dir@^1.0.0, make-dir@^1.1.0:
+make-dir@^1.0.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-1.3.0.tgz#79c1033b80515bd6d24ec9933e860ca75ee27f0c"
   integrity sha512-2w31R7SJtieJJnQtGc7RVL2StM2vGYVfqUOvUDxH6bC6aJTxPxTF0GnIgCyu7tjockiUWAYQRbxa7vKn34s5sQ==
   dependencies:
     pify "^3.0.0"
 
+make-dir@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/make-dir/-/make-dir-3.0.0.tgz#1b5f39f6b9270ed33f9f054c5c0f84304989f801"
+  integrity sha512-grNJDhb8b1Jm1qeqW5R/O63wUo4UXo2v2HMic6YT9i/HBlF93S8jkMgH7yugvY9ABDShH4VZMn8I+U8+fCNegw==
+  dependencies:
+    semver "^6.0.0"
+
 make-iterator@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/make-iterator/-/make-iterator-1.0.1.tgz#29b33f312aa8f547c4a5e490f56afcec99133ad6"
@@ -9365,6 +9371,15 @@ read-pkg@^3.0.0:
     string_decoder "~1.1.1"
     util-deprecate "~1.0.1"
 
+"readable-stream@2 || 3":
+  version "3.4.0"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.4.0.tgz#a51c26754658e0a3c21dbf59163bd45ba6f447fc"
+  integrity sha512-jItXPLmrSR8jmTRmRWJXCnGJsfy85mB3Wd/uINMXA65yrnFo0cPClFIUWzo2najVNSl+mx7/4W8ttlLWJe99pQ==
+  dependencies:
+    inherits "^2.0.3"
+    string_decoder "^1.1.1"
+    util-deprecate "^1.0.1"
+
 "readable-stream@>=1.0.33-1 <1.1.0-0", readable-stream@~1.0.17, readable-stream@~1.0.27-1, readable-stream@~1.0.33-1:
   version "1.0.34"
   resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.0.34.tgz#125820e34bc842d2f2aaafafe4c2916ee32c157c"
@@ -10001,6 +10016,11 @@ semver@^5.0.3, semver@^5.1.0:
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.6.0.tgz#7e74256fbaa49c75aa7c7a205cc22799cac80004"
   integrity sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==
 
+semver@^6.0.0:
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/semver/-/semver-6.1.1.tgz#53f53da9b30b2103cd4f15eab3a18ecbcb210c9b"
+  integrity sha512-rWYq2e5iYW+fFe/oPPtYJxYgjBm8sC4rmoGdUOgBB7VnwKt6HrL793l2voH1UlsyYZpJ4g0wfjnTEO1s1NP2eQ==
+
 semver@~5.0.3:
   version "5.0.3"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.0.3.tgz#77466de589cd5d3c95f138aa78bc569a3cb5d27a"
@@ -11174,6 +11194,13 @@ through2@^0.6.0, through2@^0.6.1:
     readable-stream ">=1.0.33-1 <1.1.0-0"
     xtend ">=4.0.0 <4.1.0-0"
 
+through2@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-3.0.1.tgz#39276e713c3302edf9e388dd9c812dd3b825bd5a"
+  integrity sha512-M96dvTalPT3YbYLaKaCuwu+j06D/8Jfib0o/PxbVt6Amhv3dUAtW6rTV1jPgJSBG83I/e04Y6xkVdVhSRhi0ww==
+  dependencies:
+    readable-stream "2 || 3"
+
 through2@~0.4.1:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/through2/-/through2-0.4.2.tgz#dbf5866031151ec8352bb6c4db64a2292a840b9b"