diff --git a/reveal.js-3.9.2/package-lock.json b/reveal.js-3.9.2/package-lock.json
index f791009..02d6021 100644
--- a/reveal.js-3.9.2/package-lock.json
+++ b/reveal.js-3.9.2/package-lock.json
@@ -476,6 +476,12 @@
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+      "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
@@ -1707,15 +1713,15 @@
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-      "integrity": "sha1-qEC0uK9kAyZMjbV/Txp0Mz74H+k=",
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-1.7.0.tgz",
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-        "concat-stream": "1.6.2",
-        "debug": "2.6.9",
-        "mkdirp": "0.5.1",
-        "yauzl": "2.4.1"
+        "concat-stream": "^1.6.2",
+        "debug": "^2.6.9",
+        "mkdirp": "^0.5.4",
+        "yauzl": "^2.10.0"
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@@ -1730,10 +1736,19 @@
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           }
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+        "fd-slicer": {
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+          "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz",
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+          "dev": true,
+          "requires": {
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+          }
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-          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
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@@ -1743,9 +1758,9 @@
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-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
-          "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+          "version": "2.3.8",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
+          "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
           "dev": true,
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@@ -1765,6 +1780,16 @@
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+        },
+        "yauzl": {
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+          "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
+          "integrity": "sha512-p4a9I6X6nu6IhoGmBqAcbJy1mlC4j27vEPZX9F4L4/vZT3Lyq1VkFHw/V/PUcB9Buo+DG3iHkT0x3Qya58zc3g==",
+          "dev": true,
+          "requires": {
+            "buffer-crc32": "~0.2.3",
+            "fd-slicer": "~1.1.0"
+          }
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@@ -1795,15 +1820,6 @@
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-      "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.0.1.tgz",
-      "integrity": "sha1-i1vL2ewyfFBBv5qwI/1nUPEXfmU=",
-      "dev": true,
-      "requires": {
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@@ -3437,9 +3453,9 @@
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-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=",
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.8.tgz",
+      "integrity": "sha512-2yyAR8qBkN3YuheJanUpWC5U3bb5osDywNB8RzDVlDwDHbocAJveqqj1u8+SVD7jkWT4yvsHCpWqqWqAxb0zCA==",
       "dev": true
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@@ -3464,20 +3480,12 @@
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-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
-      "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
+      "version": "0.5.6",
+      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.6.tgz",
+      "integrity": "sha512-FP+p8RB8OWpF3YZBCrP5gtADmtXApB5AMLn+vdyA+PyxCjrCs00mjyUozssO33cwDeT3wNGdLxJ5M//YqtHAJw==",
       "dev": true,
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-      },
-      "dependencies": {
-        "minimist": {
-          "version": "0.0.8",
-          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
-          "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=",
-          "dev": true
-        }
+        "minimist": "^1.2.6"
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@@ -5684,15 +5692,6 @@
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-      "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.4.1.tgz",
-      "integrity": "sha1-lSj0QtqxsihOWLQ3m7GU4i4MQAU=",
-      "dev": true,
-      "requires": {
-        "fd-slicer": "~1.0.1"
-      }
-    },
     "yeast": {
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       "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",