diff --git a/package.json b/package.json
index 622e67eda..04886bf94 100644
--- a/package.json
+++ b/package.json
@@ -34,14 +34,14 @@
     "lerna": "^3.4.0",
     "lint-staged": "^9.2.3",
     "minimist": "^1.2.0",
-    "prettier": "^1.14.2",
+    "prettier": "~1.14.0",
     "rollup": "^0.65.0",
     "rollup-plugin-alias": "^1.4.0",
     "rollup-plugin-replace": "^2.0.0",
     "rollup-plugin-terser": "^2.0.2",
     "rollup-plugin-typescript2": "^0.17.0",
     "ts-jest": "^23.10.0",
-    "typescript": "^3.5.0",
+    "typescript": "^3.5.3",
     "yorkie": "^2.0.0"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 969209b0b..78e66a3d0 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5176,10 +5176,10 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
   integrity sha1-gV7R9uvGWSb4ZbMQwHE7yzMVzks=
 
-prettier@^1.14.2:
-  version "1.14.2"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.14.2.tgz#0ac1c6e1a90baa22a62925f41963c841983282f9"
-  integrity sha512-McHPg0n1pIke+A/4VcaS2en+pTNjy4xF+Uuq86u/5dyDO59/TtFZtQ708QIRkEZ3qwKz3GVkVa6mpxK/CpB8Rg==
+prettier@~1.14.0:
+  version "1.14.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.14.3.tgz#90238dd4c0684b7edce5f83b0fb7328e48bd0895"
+  integrity sha512-qZDVnCrnpsRJJq5nSsiHCE3BYMED2OtsI+cmzIzF1QIfqm5ALf8tEJcO27zV1gKNKRPdhjO0dNWnrzssDQ1tFg==
 
 pretty-format@^23.6.0:
   version "23.6.0"
@@ -6366,10 +6366,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.5.0:
-  version "3.5.1"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.1.tgz#ba72a6a600b2158139c5dd8850f700e231464202"
-  integrity sha512-64HkdiRv1yYZsSe4xC1WVgamNigVYjlssIoaH2HcZF0+ijsk5YK2g0G34w9wJkze8+5ow4STd22AynfO6ZYYLw==
+typescript@^3.5.3:
+  version "3.5.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
+  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
 
 uglify-js@^3.1.4:
   version "3.4.9"