diff --git a/package-lock.json b/package-lock.json
index de24d0a..a40e96a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,9 +1,21 @@
 {
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@@ -3029,7 +3041,6 @@
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@@ -4565,12 +4577,6 @@
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-      "dev": true
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@@ -12795,7 +13104,8 @@
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-      "dev": true
+      "dev": true,
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@@ -13313,7 +13623,8 @@
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-          "dev": true
+          "dev": true,
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@@ -15496,6 +15807,7 @@
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@@ -15517,7 +15829,6 @@
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@@ -15846,6 +16157,7 @@
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         "buble": {
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+          "from": "github:pemrouz/buble#4e639aeeb64712ac95dc30a52750d1ee4432c9c8",
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@@ -15899,6 +16211,12 @@
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+      "resolved": "https://registry.npmjs.org/robust-predicates/-/robust-predicates-3.0.1.tgz",
+      "integrity": "sha512-ndEIpszUHiG4HtDsQLeIuMvRsDnn8c8rYStabochtUeCvfuvNptb5TUbVD68LRAILPX7p9nqQGh4xJgn3EHS/g==",
+      "dev": true
+    },
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@@ -16167,17 +16485,6 @@
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@@ -16522,23 +16829,19 @@
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-      "integrity": "sha512-wA9XS475ZmGNlEnYYLPReSfuz/c3VQsEMoU43mi6OnKMCdbnFXd4/Yg7J0lBv8jkPolacMpOrWEaoYxuE1+hoQ==",
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-      "dev": true
+      "dev": true,
+      "optional": true
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       "integrity": "sha1-1275EnyyPCJZ7bHoNJwujV4tdME=",
       "dev": true,
+      "optional": true,
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@@ -16849,6 +17152,7 @@
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       "dev": true,
+      "optional": true,
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@@ -16859,6 +17163,7 @@
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       "dev": true,
+      "optional": true,
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@@ -16869,6 +17174,7 @@
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           "dev": true,
+          "optional": true,
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@@ -17239,14 +17545,6 @@
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-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
-      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
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       "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
@@ -17289,6 +17587,14 @@
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       }
     },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
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+      }
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     "stringstream": {
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       "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.6.tgz",
@@ -17318,15 +17624,6 @@
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       "integrity": "sha1-EG9l09PmotlAHKwOsM6LinArT3s="
     },
-    "strip-css-comments": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/strip-css-comments/-/strip-css-comments-3.0.0.tgz",
-      "integrity": "sha1-elYl7/iisibPiUehElTaluE9rok=",
-      "dev": true,
-      "requires": {
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       "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
@@ -17356,6 +17653,12 @@
         "schema-utils": "0.4.7"
       }
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+    "stylis": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/stylis/-/stylis-4.1.1.tgz",
+      "integrity": "sha512-lVrM/bNdhVX2OgBFNa2YJ9Lxj7kPzylieHd3TNjuGE0Re9JB7joL5VUKOVH1kdNNJTgGPpT8hmwIAPLaSyEVFQ==",
+      "dev": true
+    },
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@@ -18035,18 +18338,6 @@
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-      "resolved": "https://registry.npmjs.org/try-catch/-/try-catch-2.0.1.tgz",
-      "integrity": "sha512-LsOrmObN/2WdM+y2xG+t16vhYrQsnV8wftXIcIOWZhQcBJvKGYuamJGwnU98A7Jxs2oZNkJztXlphEOoA0DWqg==",
-      "dev": true
-    },
-    "try-to-catch": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/try-to-catch/-/try-to-catch-1.1.1.tgz",
-      "integrity": "sha512-ikUlS+/BcImLhNYyIgZcEmq4byc31QpC+46/6Jm5ECWkVFhf8SM2Fp/0pMVXPX6vk45SMCwrP4Taxucne8I0VA==",
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diff --git a/package.json b/package.json
index 61f1a66..8c1b955 100644
--- a/package.json
+++ b/package.json
@@ -156,7 +156,7 @@
     "karma-webpack": "^3.0.0",
     "less": "^3.8.1",
     "less-loader": "^4.1.0",
-    "mermaid": "^8.0.0-rc.8",
+    "mermaid": "^9.1.2",
     "mini-css-extract-plugin": "0.4.0",
     "mocha": "^5.2.0",
     "multispinner": "^0.2.1",