diff --git a/package-lock.json b/package-lock.json
index 379b942da..7e98c9ce2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "aws-sdk": "^2.285.1",
         "csscolorparser": "~1.0.2",
         "d3-queue": "3.0.7",
-        "diff": "4.0.1",
+        "diff": "5.1.0",
         "ejs": "^3.1.8",
         "esm": "~3.2.25",
         "express": "^4.18.1",
@@ -1072,9 +1072,9 @@
       }
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     "node_modules/diff": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
-      "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
+      "integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw==",
       "dev": true,
       "engines": {
         "node": ">=0.3.1"
@@ -4574,9 +4574,9 @@
       "integrity": "sha512-463v3ZeIrcWtdgIg6vI6XUncguvr2TnGl4SzDXinkt9mSLpBJKXT3mW6xT3VQdDN11+WVs29pgvivTc4Lp8v+w=="
     },
     "diff": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.1.tgz",
-      "integrity": "sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
+      "integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw==",
       "dev": true
     },
     "dotignore": {
diff --git a/package.json b/package.json
index 4b8b8c1ae..240d523cd 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "aws-sdk": "^2.285.1",
     "csscolorparser": "~1.0.2",
     "d3-queue": "3.0.7",
-    "diff": "4.0.1",
+    "diff": "5.1.0",
     "ejs": "^3.1.8",
     "esm": "~3.2.25",
     "express": "^4.18.1",