diff --git a/package-lock.json b/package-lock.json
index 67c53ac..97dc43c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2224,6 +2224,11 @@
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       "integrity": "sha1-ojD2T1aDEOFJgAmUB5DsmVRbyn4="
     },
+    "cssfilter": {
+      "version": "0.0.10",
+      "resolved": "https://registry.npmjs.org/cssfilter/-/cssfilter-0.0.10.tgz",
+      "integrity": "sha1-xtJnJjKi5cg+AT5oZKQs6N79IK4="
+    },
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       "resolved": "https://registry.npmjs.org/cssom/-/cssom-0.3.8.tgz",
@@ -4184,9 +4189,12 @@
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     "graphql-playground-html": {
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-      "resolved": "https://registry.npmjs.org/graphql-playground-html/-/graphql-playground-html-1.6.19.tgz",
-      "integrity": "sha512-cLAqoOlxHbGj/LBpr4l2BE9qXf3g8ShjQqU2daVueITI/3wIkcDQTaQaQp+HWv0uaX0dCsgMCFW/TooLj8yJOg=="
+      "version": "1.6.25",
+      "resolved": "https://registry.npmjs.org/graphql-playground-html/-/graphql-playground-html-1.6.25.tgz",
+      "integrity": "sha512-wMNvGsQ0OwBVhn72VVi7OdpI85IxiIZT43glRx7gQIwQ6NvhFnzMYBIVmcJAJ4UlXRYiWtrQhuOItDXObiR3kg==",
+      "requires": {
+        "xss": "^1.0.6"
+      }
     },
     "graphql-playground-middleware-express": {
       "version": "1.7.14",
@@ -10186,6 +10194,15 @@
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       "dev": true
     },
+    "xss": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/xss/-/xss-1.0.7.tgz",
+      "integrity": "sha512-A9v7tblGvxu8TWXQC9rlpW96a+LN1lyw6wyhpTmmGW+FwRMactchBR3ROKSi33UPCUcUHSu8s9YP6F+K3Mw//w==",
+      "requires": {
+        "commander": "^2.20.3",
+        "cssfilter": "0.0.10"
+      }
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",