diff --git a/jupyterlab_dotscience/package-lock.json b/jupyterlab_dotscience/package-lock.json
index 2f0896a..924856d 100644
--- a/jupyterlab_dotscience/package-lock.json
+++ b/jupyterlab_dotscience/package-lock.json
@@ -397,14 +397,21 @@
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+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
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+        "fast-deep-equal": "^3.1.1",
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         "uri-js": "^4.2.2"
+      },
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+        "fast-deep-equal": {
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+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
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     },
     "ansi-styles": {
@@ -566,11 +573,6 @@
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