diff --git a/package-lock.json b/package-lock.json
index 78a1fa92..0d8473b4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
         "d3": "^7.8.2",
         "d3-flextree": "^2.1.2",
         "emitter": "^0.0.2",
-        "highlight.js": "^11.7.0",
+        "highlight.js": "^11.9.0",
         "humanize-duration": "^3.28.0",
         "lodash": "^4.17.21",
         "sass": "^1.58.0",
@@ -5161,9 +5161,9 @@
       }
     },
     "node_modules/highlight.js": {
-      "version": "11.7.0",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-11.7.0.tgz",
-      "integrity": "sha512-1rRqesRFhMO/PRF+G86evnyJkCgaZFOI+Z6kdj15TA18funfoqJXvgPCLSf0SWq3SRfg1j3HlDs8o4s3EGq1oQ==",
+      "version": "11.9.0",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-11.9.0.tgz",
+      "integrity": "sha512-fJ7cW7fQGCYAkgv4CPfwFHrfd/cLS4Hau96JuJ+ZTOWhjnhoeN1ub1tFmALm/+lW5z4WCAuAV9bm05AP0mS6Gw==",
       "engines": {
         "node": ">=12.0.0"
       }
@@ -12557,9 +12557,9 @@
       }
     },
     "highlight.js": {
-      "version": "11.7.0",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-11.7.0.tgz",
-      "integrity": "sha512-1rRqesRFhMO/PRF+G86evnyJkCgaZFOI+Z6kdj15TA18funfoqJXvgPCLSf0SWq3SRfg1j3HlDs8o4s3EGq1oQ=="
+      "version": "11.9.0",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-11.9.0.tgz",
+      "integrity": "sha512-fJ7cW7fQGCYAkgv4CPfwFHrfd/cLS4Hau96JuJ+ZTOWhjnhoeN1ub1tFmALm/+lW5z4WCAuAV9bm05AP0mS6Gw=="
     },
     "html-encoding-sniffer": {
       "version": "2.0.1",
diff --git a/package.json b/package.json
index 27709b65..169710a0 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "d3": "^7.8.2",
     "d3-flextree": "^2.1.2",
     "emitter": "^0.0.2",
-    "highlight.js": "^11.7.0",
+    "highlight.js": "^11.9.0",
     "humanize-duration": "^3.28.0",
     "lodash": "^4.17.21",
     "sass": "^1.58.0",