diff --git a/package.json b/package.json
index bd6ba145f1..a242dbeeb0 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "@sentry/vue": "^7.11.1",
     "@toast-ui/editor": "^2.3.1",
     "ajv": "^8.9.0",
-    "axios": "^0.21.2",
+    "axios": "^0.27.2",
     "broadcast-channel": "^3.0.3",
     "clipboard-polyfill": "^2.8.1",
     "codemirror": "5.58.2",
@@ -81,7 +81,7 @@
     "pdfjs-dist": "^2.15.349",
     "qs": "^6.11.0",
     "regenerator-runtime": "^0.13.5",
-    "showdown": "^1.9.1",
+    "showdown": "^2.1.0",
     "spark-md5": "^3.0.0",
     "store2": "^2.14.2",
     "string-strip-html": "8.3.0",
diff --git a/yarn.lock b/yarn.lock
index 042566211f..21bf4d33e4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2744,12 +2744,13 @@ aws4@^1.8.0:
   resolved "https://registry.yarnpkg.com/aws4/-/aws4-1.11.0.tgz#d61f46d83b2519250e2784daf5b09479a8b41c59"
   integrity sha512-xh1Rl34h6Fi1DC2WWKfxUTVqRsNnr6LsKz2+hfwDxQJWmrx8+c7ylaqBMcHfl1U1r2dsifOvKX3LQuLNZ+XSvA==
 
-axios@^0.21.2:
-  version "0.21.4"
-  resolved "https://registry.yarnpkg.com/axios/-/axios-0.21.4.tgz#c67b90dc0568e5c1cf2b0b858c43ba28e2eda575"
-  integrity sha512-ut5vewkiu8jjGBdqpM44XxjuCjq9LAKeHVmoVfHVzy8eHgxxq8SbAVQNovDA8mVi05kP0Ea/n/UzcSHcTJQfNg==
+axios@^0.27.2:
+  version "0.27.2"
+  resolved "https://registry.yarnpkg.com/axios/-/axios-0.27.2.tgz#207658cc8621606e586c85db4b41a750e756d972"
+  integrity sha512-t+yRIyySRTp/wua5xEr+z1q60QmLq8ABsS5O9Me1AsE5dfKqgnCFzwiCZZ/cGNd1lq4/7akDWMxdhVlucjmnOQ==
   dependencies:
-    follow-redirects "^1.14.0"
+    follow-redirects "^1.14.9"
+    form-data "^4.0.0"
 
 babel-code-frame@^6.26.0:
   version "6.26.0"
@@ -3662,6 +3663,11 @@ commander@^7.0.0, commander@^7.2.0:
   resolved "https://registry.yarnpkg.com/commander/-/commander-7.2.0.tgz#a36cb57d0b501ce108e4d20559a150a391d97ab7"
   integrity sha512-QrWXB+ZQSVPmIWIhtEO9H+gwHaMGYiF5ChvoJ+K9ZGHG/sVsa6yiesAD1GC/x46sET00Xlwo1u49RVVVzvcSkw==
 
+commander@^9.0.0:
+  version "9.4.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-9.4.0.tgz#bc4a40918fefe52e22450c111ecd6b7acce6f11c"
+  integrity sha512-sRPT+umqkz90UA8M1yqYfnHlZA7fF6nSphDtxeywPZ49ysjxDQybzk13CL+mXekDRG92skbcqCLVovuCusNmFw==
+
 common-tags@^1.8.0:
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/common-tags/-/common-tags-1.8.2.tgz#94ebb3c076d26032745fd54face7f688ef5ac9c6"
@@ -5364,7 +5370,7 @@ flush-promises@^1.0.2:
   resolved "https://registry.yarnpkg.com/flush-promises/-/flush-promises-1.0.2.tgz#4948fd58f15281fed79cbafc86293d5bb09b2ced"
   integrity sha512-G0sYfLQERwKz4+4iOZYQEZVpOt9zQrlItIxQAAYAWpfby3gbHrx0osCHz5RLl/XoXevXk0xoN4hDFky/VV9TrA==
 
-follow-redirects@^1.0.0, follow-redirects@^1.14.0:
+follow-redirects@^1.0.0, follow-redirects@^1.14.9:
   version "1.15.1"
   resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.1.tgz#0ca6a452306c9b276e4d3127483e29575e207ad5"
   integrity sha512-yLAMQs+k0b2m7cVxpS1VKJVvoz7SS9Td1zss3XRwXj+ZDH00RJgnuLx7E44wx02kQLrdM3aOOy+FpzS7+8OizA==
@@ -5395,6 +5401,15 @@ form-data@^3.0.0:
     combined-stream "^1.0.8"
     mime-types "^2.1.12"
 
+form-data@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-4.0.0.tgz#93919daeaf361ee529584b9b31664dc12c9fa452"
+  integrity sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.8"
+    mime-types "^2.1.12"
+
 form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"
@@ -10804,12 +10819,12 @@ shellwords@^0.1.1:
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
   integrity sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==
 
-showdown@^1.9.1:
-  version "1.9.1"
-  resolved "https://registry.yarnpkg.com/showdown/-/showdown-1.9.1.tgz#134e148e75cd4623e09c21b0511977d79b5ad0ef"
-  integrity sha512-9cGuS382HcvExtf5AHk7Cb4pAeQQ+h0eTr33V1mu+crYWV4KvWAw6el92bDrqGEk5d46Ai/fhbEUwqJ/mTCNEA==
+showdown@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/showdown/-/showdown-2.1.0.tgz#1251f5ed8f773f0c0c7bfc8e6fd23581f9e545c5"
+  integrity sha512-/6NVYu4U819R2pUIk79n67SYgJHWCce0a5xTP979WbNp0FL9MN1I1QK662IDU1b6JzKTvmhgI7T7JYIxBi3kMQ==
   dependencies:
-    yargs "^14.2"
+    commander "^9.0.0"
 
 side-channel@^1.0.4:
   version "1.0.4"
@@ -12948,14 +12963,6 @@ yargs-parser@^13.1.2:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
-yargs-parser@^15.0.1:
-  version "15.0.3"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-15.0.3.tgz#316e263d5febe8b38eef61ac092b33dfcc9b1115"
-  integrity sha512-/MVEVjTXy/cGAjdtQf8dW3V9b97bPN7rNn8ETj6BmAQL7ibC7O1Q9SPJbGjgh3SlwoBNXMzj/ZGIj8mBgl12YA==
-  dependencies:
-    camelcase "^5.0.0"
-    decamelize "^1.2.0"
-
 yargs-parser@^18.1.2:
   version "18.1.3"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"
@@ -12990,23 +12997,6 @@ yargs@^13.3.0:
     y18n "^4.0.0"
     yargs-parser "^13.1.2"
 
-yargs@^14.2:
-  version "14.2.3"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-14.2.3.tgz#1a1c3edced1afb2a2fea33604bc6d1d8d688a414"
-  integrity sha512-ZbotRWhF+lkjijC/VhmOT9wSgyBQ7+zr13+YLkhfsSiTriYsMzkTUFP18pFhWwBeMa5gUc1MzbhrO6/VB7c9Xg==
-  dependencies:
-    cliui "^5.0.0"
-    decamelize "^1.2.0"
-    find-up "^3.0.0"
-    get-caller-file "^2.0.1"
-    require-directory "^2.1.1"
-    require-main-filename "^2.0.0"
-    set-blocking "^2.0.0"
-    string-width "^3.0.0"
-    which-module "^2.0.0"
-    y18n "^4.0.0"
-    yargs-parser "^15.0.1"
-
 yargs@^15.4.1:
   version "15.4.1"
   resolved "https://registry.yarnpkg.com/yargs/-/yargs-15.4.1.tgz#0d87a16de01aee9d8bec2bfbf74f67851730f4f8"