diff --git a/openhtf/output/web_gui/package-lock.json b/openhtf/output/web_gui/package-lock.json
index e1d5eb352..431517652 100644
--- a/openhtf/output/web_gui/package-lock.json
+++ b/openhtf/output/web_gui/package-lock.json
@@ -29,11 +29,18 @@
       }
     },
     "@angular/core": {
-      "version": "4.4.6",
-      "resolved": "https://registry.npmjs.org/@angular/core/-/core-4.4.6.tgz",
-      "integrity": "sha1-EwMf0Q3P5DiHVBmzjyESCVi8I1Q=",
+      "version": "10.2.5",
+      "resolved": "https://registry.npmjs.org/@angular/core/-/core-10.2.5.tgz",
+      "integrity": "sha512-krhOKNTj5XE92Rk9ASX5KmgTF72j7qT2PLVxrGEVjuUKjBY2XaK3TV0Kotq9zI3qa9WgeCrP/Njn6jlKQCCAEQ==",
       "requires": {
-        "tslib": "1.9.0"
+        "tslib": "^2.0.0"
+      },
+      "dependencies": {
+        "tslib": {
+          "version": "2.6.2",
+          "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
+          "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+        }
       }
     },
     "@angular/forms": {
diff --git a/openhtf/output/web_gui/package.json b/openhtf/output/web_gui/package.json
index b5778a588..62476fcc5 100644
--- a/openhtf/output/web_gui/package.json
+++ b/openhtf/output/web_gui/package.json
@@ -27,7 +27,7 @@
     "@angular/animations": "^4.4.6",
     "@angular/common": "^4.4.6",
     "@angular/compiler": "^4.4.6",
-    "@angular/core": "^4.4.6",
+    "@angular/core": "^10.2.5",
     "@angular/forms": "^4.4.6",
     "@angular/http": "^4.4.6",
     "@angular/platform-browser": "^4.4.6",