diff --git a/package-lock.json b/package-lock.json
index 5b0f7df..fa6fa98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,8 +8,7 @@
       "name": "lutece-blog",
       "version": "0.0.0",
       "dependencies": {
-        "hexo": "^5.0.0",
-        "hexo-auto-excerpt": "^1.1.2",
+        "hexo": "5.4.0",
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         "hexo-generator-archive": "^1.0.0",
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@@ -218,17 +217,6 @@
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@@ -402,12 +390,6 @@
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@@ -607,15 +589,6 @@
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@@ -640,14 +613,6 @@
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@@ -687,14 +652,6 @@
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-      "resolved": "https://registry.npmjs.org/hexo-auto-excerpt/-/hexo-auto-excerpt-1.1.2.tgz",
-      "integrity": "sha512-Gj6TJhp/Vk6XrE44CiDl3qjSZsp2J9T6lv70EjDGOoDmNNQRcdvP2B/zVoe8co7mJt8YwD6sPNppIxQc/8KCGQ==",
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@@ -1007,24 +964,6 @@
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@@ -1518,20 +1457,6 @@
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-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
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-      "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
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@@ -1590,11 +1515,11 @@
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+      "engines": {
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@@ -1667,12 +1592,6 @@
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@@ -1916,12 +1835,6 @@
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-        "util-deprecate": "^1.0.2"
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@@ -2036,14 +1932,6 @@
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@@ -2200,17 +2088,6 @@
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-      "optional": true,
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@@ -2358,12 +2235,6 @@
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@@ -2511,15 +2382,6 @@
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-      "integrity": "sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=",
-      "optional": true,
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@@ -2538,11 +2400,6 @@
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-    "he": {
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-      "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
-      "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw=="
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@@ -2572,14 +2429,6 @@
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-      "resolved": "https://registry.npmjs.org/hexo-auto-excerpt/-/hexo-auto-excerpt-1.1.2.tgz",
-      "integrity": "sha512-Gj6TJhp/Vk6XrE44CiDl3qjSZsp2J9T6lv70EjDGOoDmNNQRcdvP2B/zVoe8co7mJt8YwD6sPNppIxQc/8KCGQ==",
-      "requires": {
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       "resolved": "https://registry.npmjs.org/hexo-cli/-/hexo-cli-4.2.0.tgz",
@@ -2817,18 +2666,6 @@
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       "integrity": "sha512-tzcUFauisWKNHaRkN4Wjl/ZA07gENAjFl3J/c480dprkGTg5EQstgaNFqBfUqCq54kZRIEcreTsAgF/m2quD7A=="
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-    "html-to-text": {
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-      "resolved": "https://registry.npmjs.org/html-to-text/-/html-to-text-3.3.0.tgz",
-      "integrity": "sha1-aptjxpm4hbt7qEsURr/mh2u/z7c=",
-      "requires": {
-        "he": "^1.0.0",
-        "htmlparser2": "^3.9.2",
-        "optimist": "^0.6.1",
-        "underscore": "^1.8.3",
-        "underscore.string": "^3.2.3"
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       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-3.10.1.tgz",
@@ -3188,22 +3025,6 @@
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-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "requires": {
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-        "wordwrap": "~0.0.2"
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-      "dependencies": {
-        "minimist": {
-          "version": "0.0.10",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-          "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
-        }
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-    },
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       "resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@@ -3244,12 +3065,9 @@
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-      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.23.0.tgz",
-      "integrity": "sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==",
-      "requires": {
-        "clipboard": "^2.0.0"
-      }
+      "version": "1.27.0",
+      "resolved": "https://registry.npmjs.org/prismjs/-/prismjs-1.27.0.tgz",
+      "integrity": "sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA=="
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@@ -3308,12 +3126,6 @@
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       "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
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-    "select": {
-      "version": "1.1.2",
-      "resolved": "https://registry.npmjs.org/select/-/select-1.1.2.tgz",
-      "integrity": "sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=",
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     "semver": {
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       "resolved": "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz",
@@ -3501,12 +3313,6 @@
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       "integrity": "sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q="
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-    "tiny-emitter": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
-      "integrity": "sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==",
-      "optional": true
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       "resolved": "https://registry.npmjs.org/titlecase/-/titlecase-1.1.3.tgz",
@@ -3530,20 +3336,6 @@
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       "integrity": "sha512-N82ooyxVNm6h1riLCoyS9e3fuJ3AMG2zIZs2Gd1ATcSFjSA23Q0fzjjZeh0jbJvWVDZ0cJT8yaNNaaXHzueNjg=="
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-    "underscore": {
-      "version": "1.13.1",
-      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.13.1.tgz",
-      "integrity": "sha512-hzSoAVtJF+3ZtiFX0VgfFPHEDRm7Y/QPjGyNo4TVdnDTdft3tr8hEkD25a1jC+TjTuE7tkHGKkhwCgs9dgBB2g=="
-    },
-    "underscore.string": {
-      "version": "3.3.5",
-      "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.5.tgz",
-      "integrity": "sha512-g+dpmgn+XBneLmXXo+sGlW5xQEt4ErkS3mgeN2GFbremYeMBSJKr9Wf2KJplQVaiPY/f7FN6atosWYNm9ovrYg==",
-      "requires": {
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@@ -3590,11 +3382,6 @@
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-    "wordwrap": {
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-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
-    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/yarn.lock b/yarn.lock
index 9afa0a1..6aeadf3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -158,15 +158,6 @@ chokidar@^3.0.0:
   optionalDependencies:
     fsevents "~2.3.2"
 
-clipboard@^2.0.0:
-  version "2.0.8"
-  resolved "https://registry.npmjs.org/clipboard/-/clipboard-2.0.8.tgz"
-  integrity sha512-Y6WO0unAIQp5bLmk1zdThRhgJt/x3ks6f30s3oE3H1mgIEU33XyQjEf8gsf6DxC7NPX8Y1SsNWjUjL/ywLnnbQ==
-  dependencies:
-    good-listener "^1.2.2"
-    select "^1.1.2"
-    tiny-emitter "^2.0.0"
-
 color-convert@^2.0.1:
   version "2.0.1"
   resolved "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz"
@@ -299,11 +290,6 @@ deepmerge@^4.2.2:
   resolved "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz"
   integrity sha512-FJ3UgI4gIl+PHZm53knsuSFpE+nESMr7M4v9QcgB7S63Kj/6WqMiFQJpBBYz1Pt+66bZpP3Q7Lye0Oo9MPKEdg==
 
-delegate@^3.1.2:
-  version "3.2.0"
-  resolved "https://registry.npmjs.org/delegate/-/delegate-3.2.0.tgz"
-  integrity sha512-IofjkYBZaZivn0V8nnsMJGBr4jVLxHDheKSW88PyxS5QC4Vo9ZbZVvhzlSxY87fVq3STR6r+4cGepyHkcWOQSw==
-
 depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.npmjs.org/depd/-/depd-1.1.2.tgz"
@@ -496,13 +482,6 @@ glob@^7.1.6:
     once "^1.3.0"
     path-is-absolute "^1.0.0"
 
-good-listener@^1.2.2:
-  version "1.2.2"
-  resolved "https://registry.npmjs.org/good-listener/-/good-listener-1.2.2.tgz"
-  integrity sha1-1TswzfkxPf+33JoNR3CWqm0UXFA=
-  dependencies:
-    delegate "^3.1.2"
-
 graceful-fs@^4.1.11, graceful-fs@^4.1.3:
   version "4.2.6"
   resolved "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.6.tgz"
@@ -1035,11 +1014,9 @@ pretty-hrtime@^1.0.3:
   integrity sha1-t+PqQkNaTJsnWdmeDyAesZWALuE=
 
 prismjs@^1.17.1:
-  version "1.23.0"
-  resolved "https://registry.npmjs.org/prismjs/-/prismjs-1.23.0.tgz"
-  integrity sha512-c29LVsqOaLbBHuIbsTxaKENh1N2EQBOHaWv7gkHN4dgRbxSREqDnDbtFJYdpPauS4YCplMSNCABQ6Eeor69bAA==
-  optionalDependencies:
-    clipboard "^2.0.0"
+  version "1.27.0"
+  resolved "https://registry.yarnpkg.com/prismjs/-/prismjs-1.27.0.tgz#bb6ee3138a0b438a3653dd4d6ce0cc6510a45057"
+  integrity sha512-t13BGPUlFDR7wRB5kQDG4jjl7XeuH6jbJGt11JHPL96qwsEHNX2+68tFXqc1/k+/jALsbSWJKUOT/hcYAZ5LkA==
 
 range-parser@~1.2.1:
   version "1.2.1"
@@ -1105,11 +1082,6 @@ sax@~1.2.4:
   resolved "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
-select@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.npmjs.org/select/-/select-1.1.2.tgz"
-  integrity sha1-DnNQrN7ICxEIUoeG7B1EGNEbOW0=
-
 semver@^6.3.0:
   version "6.3.0"
   resolved "https://registry.npmjs.org/semver/-/semver-6.3.0.tgz"
@@ -1283,11 +1255,6 @@ timsort@^0.3.0:
   resolved "https://registry.npmjs.org/timsort/-/timsort-0.3.0.tgz"
   integrity sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=
 
-tiny-emitter@^2.0.0:
-  version "2.1.0"
-  resolved "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz"
-  integrity sha512-NB6Dk1A9xgQPMoGqC5CVXn123gWyte215ONT5Pp5a0yt4nlEoO1ZWeCwpncaekPHXO60i47ihFnZPiRPjRMq4Q==
-
 titlecase@^1.1.2:
   version "1.1.3"
   resolved "https://registry.npmjs.org/titlecase/-/titlecase-1.1.3.tgz"