diff --git a/backend/package.json b/backend/package.json
index ab4d5eb..b261882 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -20,7 +20,7 @@
     "dotenv": "^8.2.0",
     "express": "^4.17.1",
     "express-async-errors": "^3.1.1",
-    "express-handlebars": "^3.1.0",
+    "express-handlebars": "^5.3.1",
     "jsonwebtoken": "^8.5.1",
     "mongoose": "^5.9.1",
     "multer": "^1.4.2",
diff --git a/backend/yarn.lock b/backend/yarn.lock
index 5077ab9..16a3252 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -1053,7 +1053,7 @@ express-async-errors@^3.1.1:
   resolved "https://registry.yarnpkg.com/express-async-errors/-/express-async-errors-3.1.1.tgz#6053236d61d21ddef4892d6bd1d736889fc9da41"
   integrity sha512-h6aK1da4tpqWSbyCa3FxB/V6Ehd4EEB15zyQq9qe75OZBp0krinNKuH4rAY+S/U/2I36vdLAUFSjQJ+TFmODng==
 
-express-handlebars@^3.0.0, express-handlebars@^3.1.0:
+express-handlebars@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/express-handlebars/-/express-handlebars-3.1.0.tgz#c177ee9a81f6a2abada6b550b77b3e30c6bc0796"
   integrity sha512-7QlaXnSREMmN5P2o4gmpUZDfJlLtfBka9d6r7/ccXaU7rPp76odw9YYtwZYdIiha2JqwiaG6o2Wu6NZJQ0u7Fg==
@@ -1064,6 +1064,15 @@ express-handlebars@^3.0.0, express-handlebars@^3.1.0:
     object.assign "^4.1.0"
     promise "^8.0.2"
 
+express-handlebars@^5.3.1:
+  version "5.3.1"
+  resolved "https://registry.yarnpkg.com/express-handlebars/-/express-handlebars-5.3.1.tgz#ab97d4e5ecb3780c12564ea7553e5fe4687b0406"
+  integrity sha512-mHpf3PAYysgo6M2yl/r0p5ui/gHwVa7vLBgA3ht8HlNxRGcwXSAGOwKAtAEVdHs4j7FDb5ZGsAJoA8nFaogbGw==
+  dependencies:
+    glob "^7.1.6"
+    graceful-fs "^4.2.6"
+    handlebars "^4.7.7"
+
 express@^4.17.1:
   version "4.17.1"
   resolved "https://registry.yarnpkg.com/express/-/express-4.17.1.tgz#4491fc38605cf51f8629d39c2b5d026f98a4c134"
@@ -1264,10 +1273,10 @@ glob-parent@^5.0.0, glob-parent@~5.1.0:
   dependencies:
     is-glob "^4.0.1"
 
-glob@^7.1.3:
-  version "7.1.6"
-  resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
-  integrity sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==
+glob@^7.1.3, glob@^7.1.6:
+  version "7.2.0"
+  resolved "https://registry.yarnpkg.com/glob/-/glob-7.2.0.tgz#d15535af7732e02e948f4c41628bd910293f6023"
+  integrity sha512-lmLf6gtyrPq8tTjSmrO94wBeQbFR3HbLHbuyD69wuyQkImp2hWqMGB47OX65FBkPffO641IP9jWa1z4ivqG26Q==
   dependencies:
     fs.realpath "^1.0.0"
     inflight "^1.0.4"
@@ -1307,19 +1316,20 @@ got@^6.7.1:
     unzip-response "^2.0.1"
     url-parse-lax "^1.0.0"
 
-graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6:
-  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.3.tgz#4a12ff1b60376ef09862c2093edd908328be8423"
-  integrity sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==
+graceful-fs@^4.1.11, graceful-fs@^4.1.2, graceful-fs@^4.1.6, graceful-fs@^4.2.6:
+  version "4.2.9"
+  resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.9.tgz#041b05df45755e587a24942279b9d113146e1c96"
+  integrity sha512-NtNxqUcXgpW2iMrfqSfR73Glt39K+BLwWsPs94yR63v45T0Wbej7eRmL5cWfwEgqXnmjQp3zaJTshdRW/qC2ZQ==
 
-handlebars@^4.1.2:
-  version "4.7.3"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.3.tgz#8ece2797826886cf8082d1726ff21d2a022550ee"
-  integrity sha512-SRGwSYuNfx8DwHD/6InAPzD6RgeruWLT+B8e8a7gGs8FWgHzlExpTFMEq2IA6QpAfOClpKHy6+8IqTjeBCu6Kg==
+handlebars@^4.1.2, handlebars@^4.7.7:
+  version "4.7.7"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
+  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
   dependencies:
+    minimist "^1.2.5"
     neo-async "^2.6.0"
-    optimist "^0.6.1"
     source-map "^0.6.1"
+    wordwrap "^1.0.0"
   optionalDependencies:
     uglify-js "^3.1.4"
 
@@ -1877,10 +1887,10 @@ minimist@^1.2.0:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-minimist@~0.0.1:
-  version "0.0.10"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
-  integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
 mkdirp@^0.5.1, mkdirp@~0.5.1:
   version "0.5.1"
@@ -2169,14 +2179,6 @@ onetime@^5.1.0:
   dependencies:
     mimic-fn "^2.1.0"
 
-optimist@^0.6.1:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
-  integrity sha1-2j6nRob6IaGaERwybpDrFaAZZoY=
-  dependencies:
-    minimist "~0.0.1"
-    wordwrap "~0.0.2"
-
 optionator@^0.8.3:
   version "0.8.3"
   resolved "https://registry.yarnpkg.com/optionator/-/optionator-0.8.3.tgz#84fa1d036fe9d3c7e21d99884b601167ec8fb495"
@@ -3373,10 +3375,10 @@ word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
-wordwrap@~0.0.2:
-  version "0.0.3"
-  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-0.0.3.tgz#a3d5da6cd5c0bc0008d37234bbaf1bed63059107"
-  integrity sha1-o9XabNXAvAAI03I0u68b7WMFkQc=
+wordwrap@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
 
 wrap-ansi@^5.1.0:
   version "5.1.0"