diff --git a/package-lock.json b/package-lock.json
index 0ebe68f..3118ceb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -236,6 +236,7 @@
       "version": "1.0.9",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.9.tgz",
       "integrity": "sha1-c9g7wmP4bpf4zE9rrhsOkKfSLIY=",
+      "dev": true,
       "requires": {
         "sprintf-js": "~1.0.2"
       }
@@ -3496,7 +3497,8 @@
     "entities": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/entities/-/entities-1.1.1.tgz",
-      "integrity": "sha1-blwtClYhtdra7O+AuQ7ftc13cvA="
+      "integrity": "sha1-blwtClYhtdra7O+AuQ7ftc13cvA=",
+      "dev": true
     },
     "errno": {
       "version": "0.1.4",
@@ -4293,7 +4295,7 @@
       "dependencies": {
         "combined-stream": {
           "version": "1.0.6",
-          "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
           "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
           "requires": {
             "delayed-stream": "~1.0.0"
@@ -6918,9 +6920,9 @@
       }
     },
     "linkify-it": {
-      "version": "2.0.3",
-      "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-2.0.3.tgz",
-      "integrity": "sha1-2UpGSPmxwXnWT6lykSaL22zpQ08=",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/linkify-it/-/linkify-it-3.0.3.tgz",
+      "integrity": "sha512-ynTsyrFSdE5oZ/O9GEf00kPngmOfVwazR5GKDq6EYfhlpFug3J2zybX56a2PRRpc9P+FuSoGNAwjlbDs9jJBPQ==",
       "requires": {
         "uc.micro": "^1.0.1"
       }
@@ -7118,15 +7120,27 @@
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     "markdown-it": {
-      "version": "8.4.0",
-      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-8.4.0.tgz",
-      "integrity": "sha512-tNuOCCfunY5v5uhcO2AUMArvKAyKMygX8tfup/JrgnsDqcCATQsAExBq7o5Ml9iMmO82bk6jYNLj6khcrl0JGA==",
+      "version": "12.3.2",
+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-12.3.2.tgz",
+      "integrity": "sha512-TchMembfxfNVpHkbtriWltGWc+m3xszaRD0CZup7GFFhzIgQqxIfn3eGj1yZpfuflzPvfkt611B2Q/Bsk1YnGg==",
       "requires": {
-        "argparse": "^1.0.7",
-        "entities": "~1.1.1",
-        "linkify-it": "^2.0.0",
+        "argparse": "^2.0.1",
+        "entities": "~2.1.0",
+        "linkify-it": "^3.0.1",
         "mdurl": "^1.0.1",
-        "uc.micro": "^1.0.3"
+        "uc.micro": "^1.0.5"
+      },
+      "dependencies": {
+        "argparse": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
+          "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q=="
+        },
+        "entities": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-2.1.0.tgz",
+          "integrity": "sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w=="
+        }
       }
     },
     "marked": {
@@ -7546,7 +7560,7 @@
           "dependencies": {
             "combined-stream": {
               "version": "1.0.6",
-              "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+              "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
               "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
               "dev": true,
               "requires": {
@@ -7651,7 +7665,7 @@
         },
         "semver": {
           "version": "5.3.0",
-          "resolved": "http://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.3.0.tgz",
           "integrity": "sha1-myzl094C0XxgEq0yaqa00M9U+U8=",
           "dev": true
         },
@@ -7801,7 +7815,7 @@
         },
         "chalk": {
           "version": "1.1.3",
-          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
@@ -7850,7 +7864,7 @@
           "dependencies": {
             "combined-stream": {
               "version": "1.0.6",
-              "resolved": "http://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
+              "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.6.tgz",
               "integrity": "sha1-cj599ugBrFYTETp+RFqbactjKBg=",
               "dev": true,
               "requires": {
@@ -11816,7 +11830,8 @@
     "sprintf-js": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
-      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw="
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
     },
     "sshpk": {
       "version": "1.15.1",
@@ -12103,7 +12118,7 @@
       "dependencies": {
         "minimist": {
           "version": "1.2.0",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
           "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
           "dev": true
         }
@@ -12622,9 +12637,9 @@
       "integrity": "sha1-EQ1T+kw/MmwSEpK76skE0uAzh8o="
     },
     "uc.micro": {
-      "version": "1.0.3",
-      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.3.tgz",
-      "integrity": "sha1-ftUNXg+an7ClczeSWfKndFjVAZI="
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-1.0.6.tgz",
+      "integrity": "sha512-8Y75pvTYkLJW2hWQHXxoqRgV7qb9B+9vFEtidML+7koHUFapnVJAZ6cKs+Qjz5Aw3aZWHMC6u0wJE3At+nSGwA=="
     },
     "uglify-js": {
       "version": "3.4.9",
diff --git a/package.json b/package.json
index 0cd7365..98bc292 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "history": "^4.7.2",
     "json-pretty-html": "^1.1.5",
     "jszip": "^3.1.4",
-    "markdown-it": "^8.4.0",
+    "markdown-it": "^12.3.2",
     "react": "^16.5.2",
     "react-dnd": "^5.0.0",
     "react-dnd-html5-backend": "^5.0.1",