diff --git a/js-examples/physics/package-lock.json b/js-examples/physics/package-lock.json
index 9341fd4..86ea9d2 100644
--- a/js-examples/physics/package-lock.json
+++ b/js-examples/physics/package-lock.json
@@ -2265,39 +2265,39 @@
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       "resolved": "https://registry.npmjs.org/express/-/express-4.16.2.tgz",
-      "integrity": "sha1-41xt/i1kt9ygpc1PIXgb4ymeB2w=",
+      "integrity": "sha512-4mc9RUEAUpPMFR6gpXcnPt0/q2Zil35FTUr07ixWYX90RmUKL3jUbvTvJzkc/uL3r+A7kuWSiIqOyVUSWoZXWQ==",
       "dev": true,
       "requires": {
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+        "accepts": "~1.3.4",
         "array-flatten": "1.1.1",
         "body-parser": "1.18.2",
         "content-disposition": "0.5.2",
-        "content-type": "1.0.4",
+        "content-type": "~1.0.4",
         "cookie": "0.3.1",
         "cookie-signature": "1.0.6",
         "debug": "2.6.9",
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-        "encodeurl": "1.0.1",
-        "escape-html": "1.0.3",
-        "etag": "1.8.1",
+        "depd": "~1.1.1",
+        "encodeurl": "~1.0.1",
+        "escape-html": "~1.0.3",
+        "etag": "~1.8.1",
         "finalhandler": "1.1.0",
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         "merge-descriptors": "1.0.1",
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-        "on-finished": "2.3.0",
-        "parseurl": "1.3.2",
+        "methods": "~1.1.2",
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         "serve-static": "1.13.1",
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-        "statuses": "1.3.1",
-        "type-is": "1.6.15",
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@@ -2500,7 +2500,8 @@
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@@ -2551,7 +2552,8 @@
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@@ -2566,6 +2568,7 @@
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@@ -2574,6 +2577,7 @@
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@@ -2582,6 +2586,7 @@
           "version": "1.1.7",
           "bundled": true,
           "dev": true,
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@@ -2590,7 +2595,8 @@
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@@ -2607,12 +2613,14 @@
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@@ -2620,22 +2628,26 @@
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@@ -2675,7 +2687,8 @@
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@@ -2707,7 +2720,8 @@
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@@ -2729,12 +2743,14 @@
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@@ -2790,6 +2806,7 @@
           "version": "7.1.2",
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@@ -2802,7 +2819,8 @@
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@@ -2830,6 +2848,7 @@
           "version": "3.1.3",
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@@ -2840,7 +2859,8 @@
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@@ -2857,6 +2877,7 @@
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@@ -2865,7 +2886,8 @@
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@@ -2877,6 +2899,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
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@@ -2890,7 +2913,8 @@
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@@ -2963,12 +2987,14 @@
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@@ -2977,6 +3003,7 @@
           "version": "3.0.4",
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@@ -2984,12 +3011,14 @@
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+          "optional": true
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         "mkdirp": {
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@@ -3044,7 +3073,8 @@
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           "version": "1.0.1",
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@@ -3062,6 +3092,7 @@
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@@ -3091,7 +3122,8 @@
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@@ -3102,7 +3134,8 @@
         "process-nextick-args": {
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@@ -3140,6 +3173,7 @@
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@@ -3184,6 +3218,7 @@
           "version": "2.6.1",
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@@ -3191,7 +3226,8 @@
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@@ -3215,6 +3251,7 @@
           "version": "1.0.9",
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           "dev": true,
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@@ -3244,24 +3281,26 @@
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           "version": "1.0.2",
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             "strip-ansi": "3.0.1"
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@@ -3272,6 +3311,7 @@
           "version": "3.0.1",
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           "dev": true,
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@@ -3286,6 +3326,7 @@
           "version": "2.2.1",
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@@ -3341,7 +3382,8 @@
         "util-deprecate": {
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@@ -3370,7 +3412,8 @@
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@@ -6718,15 +6761,6 @@
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       "dev": true
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@@ -6738,6 +6772,15 @@
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