diff --git a/package-lock.json b/package-lock.json
index 1bc086c1..2dd623e0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4772,9 +4772,9 @@
             }
         },
         "dateformat": {
-            "version": "3.0.3",
-            "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-3.0.3.tgz",
-            "integrity": "sha512-jyCETtSl3VMZMWeRo7iY1FL19ges1t55hMo5yaam4Jrsm5EPL89UQkoQRyiI+Yf4k8r2ZpdngkV8hr1lIdjb3Q=="
+            "version": "5.0.1",
+            "resolved": "https://registry.npmjs.org/dateformat/-/dateformat-5.0.1.tgz",
+            "integrity": "sha512-DrcKxOW2am3mtqoJwBTK3OlWcF0QSk1p8diEWwpu3Mf//VdURD7XVaeOV738JvcaBiFfm9o2fisoMhiJH0aYxg=="
         },
         "debug": {
             "version": "4.1.1",
diff --git a/package.json b/package.json
index b5b60f10..38848efa 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
         "d3-selection": "1.4.1",
         "d3-shape": "1.3.7",
         "d3-transition": "1.3.2",
-        "dateformat": "3.0.3",
+        "dateformat": "5.0.1",
         "distinct-colors": "3.0.0",
         "markdown-it": "11.0.0",
         "markdown-it-sup": "1.0.0",