diff --git a/package-lock.json b/package-lock.json
index fc64a0e15..8a4c11124 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -234,7 +234,7 @@
         "csp-parse": "0.0.2",
         "css-loader": "^6.11.0",
         "css-minimizer-webpack-plugin": "^7.0.0",
-        "diff": "^5.2.0",
+        "diff": "^7.0.0",
         "dotenv": "^16.4.5",
         "eslint": "^8.57.0",
         "eslint-config-pixiebrix": "^0.39.0",
@@ -13480,9 +13480,9 @@
       }
     },
     "node_modules/diff": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-5.2.0.tgz",
-      "integrity": "sha512-uIFDxqpRZGZ6ThOk84hEfqWoHx2devRFvpTZcTHur85vImfaxUbTW9Ryh4CpCuDnToOP1CEtXKIgytHBPVff5A==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-7.0.0.tgz",
+      "integrity": "sha512-PJWHUb1RFevKCwaFA9RlG5tCd+FO5iRh9A8HEtkmBH2Li03iJriB6m6JIN4rGz3K3JLawI7/veA1xzRKP6ISBw==",
       "dev": true,
       "engines": {
         "node": ">=0.3.1"
diff --git a/package.json b/package.json
index 36290c256..7182211e7 100644
--- a/package.json
+++ b/package.json
@@ -259,7 +259,7 @@
     "csp-parse": "0.0.2",
     "css-loader": "^6.11.0",
     "css-minimizer-webpack-plugin": "^7.0.0",
-    "diff": "^5.2.0",
+    "diff": "^7.0.0",
     "dotenv": "^16.4.5",
     "eslint": "^8.57.0",
     "eslint-config-pixiebrix": "^0.39.0",