diff --git a/package-lock.json b/package-lock.json
index 16daf255..1356a54e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4458,9 +4458,9 @@
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@@ -5933,6 +5933,15 @@
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+      "resolved": "https://registry.npmjs.org/entity-decode/-/entity-decode-2.0.2.tgz",
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+      "dev": true,
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@@ -10700,9 +10709,9 @@
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-      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-8.4.8.tgz",
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+      "resolved": "https://registry.npmjs.org/mermaid/-/mermaid-8.6.4.tgz",
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@@ -10710,9 +10719,9 @@
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         "dagre": "^0.8.4",
         "dagre-d3": "^0.6.4",
+        "entity-decode": "^2.0.2",
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         "he": "^1.2.0",
-        "lodash": "^4.17.11",
         "minify": "^4.1.1",
         "moment-mini": "^2.22.1",
         "scope-css": "^1.2.1"
@@ -10867,12 +10876,12 @@
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-          "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
-          "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "version": "4.3.1",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.1.tgz",
+          "integrity": "sha512-doEwdvm4PCeK4K3RQN2ZC2BYUBaxwLARCqZmMjtF8a51J2Rb0xpVloFRnCODwqjpwnAoao4pelN8l3RJdv3gRQ==",
           "dev": true,
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-            "ms": "^2.1.1"
+            "ms": "2.1.2"
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@@ -15166,9 +15175,9 @@
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-      "resolved": "https://registry.npmjs.org/slugify/-/slugify-1.3.6.tgz",
-      "integrity": "sha512-wA9XS475ZmGNlEnYYLPReSfuz/c3VQsEMoU43mi6OnKMCdbnFXd4/Yg7J0lBv8jkPolacMpOrWEaoYxuE1+hoQ==",
+      "version": "1.4.6",
+      "resolved": "https://registry.npmjs.org/slugify/-/slugify-1.4.6.tgz",
+      "integrity": "sha512-ZdJIgv9gdrYwhXqxsH9pv7nXxjUEyQ6nqhngRxoAAOlmMGA28FDq5O4/5US4G2/Nod7d1ovNcgURQJ7kHq50KQ==",
       "dev": true
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diff --git a/package.json b/package.json
index 29fb2be4..79d32876 100644
--- a/package.json
+++ b/package.json
@@ -166,7 +166,7 @@
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     "markmap-lib": "^0.4.2",
     "mathjax": "~2.7.5",
-    "mermaid": "~8.4.8",
+    "mermaid": "~8.6.4",
     "mini-css-extract-plugin": "~0.4.1",
     "mocha": "~5.2.0",
     "mock-require": "~3.0.3",