diff --git a/experiments/guess-static-sites/package-lock.json b/experiments/guess-static-sites/package-lock.json
index 3ca846fd..ff1d1553 100644
--- a/experiments/guess-static-sites/package-lock.json
+++ b/experiments/guess-static-sites/package-lock.json
@@ -1925,16 +1925,17 @@
       "dev": true
     },
     "chai": {
-      "version": "4.3.0",
-      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.0.tgz",
-      "integrity": "sha512-/BFd2J30EcOwmdOgXvVsmM48l0Br0nmZPlO0uOW4XKh6kpsUumRXBgPV+IlaqFaqr9cYbeoZAM1Npx0i4A+aiA==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/chai/-/chai-4.3.6.tgz",
+      "integrity": "sha512-bbcp3YfHCUzMOvKqsztczerVgBKSsEijCySNlHHbX3VG1nskvqjz5Rfso1gGwD6w6oOV3eI60pKuMOV5MV7p3Q==",
       "dev": true,
       "requires": {
         "assertion-error": "^1.1.0",
         "check-error": "^1.0.2",
         "deep-eql": "^3.0.1",
         "get-func-name": "^2.0.0",
-        "pathval": "^1.1.0",
+        "loupe": "^2.3.1",
+        "pathval": "^1.1.1",
         "type-detect": "^4.0.5"
       }
     },
@@ -5049,6 +5050,15 @@
         "js-tokens": "3.0.2"
       }
     },
+    "loupe": {
+      "version": "2.3.4",
+      "resolved": "https://registry.npmjs.org/loupe/-/loupe-2.3.4.tgz",
+      "integrity": "sha512-OvKfgCC2Ndby6aSTREl5aCCPTNIzlDfQZvZxNUrBrihDhL3xcrYegTblhmEiCrg2kKQz4XsFIaemE5BF4ybSaQ==",
+      "dev": true,
+      "requires": {
+        "get-func-name": "^2.0.0"
+      }
+    },
     "lru-cache": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
diff --git a/experiments/guess-static-sites/package.json b/experiments/guess-static-sites/package.json
index 5467fbbe..c42490bb 100644
--- a/experiments/guess-static-sites/package.json
+++ b/experiments/guess-static-sites/package.json
@@ -24,7 +24,7 @@
     "babel-minify": "0.5.1",
     "babel-preset-es2015": "6.24.1",
     "babel-preset-minify": "0.5.1",
-    "chai": "4.3.0",
+    "chai": "4.3.6",
     "cors": "2.8.5",
     "http-server": "0.12.1",
     "mocha": "8.3.1",