diff --git a/package-lock.json b/package-lock.json
index be0d1db..4a4a4c0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20,22 +20,6 @@
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@@ -1046,7 +1015,8 @@
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@@ -1087,17 +1059,20 @@
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+          "dev": true,
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+          "dev": true,
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@@ -1214,7 +1189,8 @@
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-          "dev": true
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@@ -1226,6 +1202,7 @@
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@@ -1240,6 +1217,7 @@
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@@ -1247,12 +1225,14 @@
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           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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           "bundled": true,
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@@ -1271,6 +1251,7 @@
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@@ -1351,7 +1332,8 @@
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           "version": "1.0.1",
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-          "dev": true
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@@ -1363,6 +1345,7 @@
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           "bundled": true,
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@@ -1448,7 +1431,8 @@
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@@ -1484,6 +1468,7 @@
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@@ -1503,6 +1488,7 @@
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           "bundled": true,
           "dev": true,
+          "optional": true,
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@@ -1546,12 +1532,14 @@
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           "version": "1.0.2",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
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@@ -1904,19 +1892,6 @@
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-      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
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-    },
-    "json5": {
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-      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
-      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
-      "requires": {
-        "minimist": "^1.2.0"
-      }
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@@ -1960,16 +1935,6 @@
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-      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.2.3.tgz",
-      "integrity": "sha512-fkpz8ejdnEMG3s37wGL07iSBDg99O9D5yflE9RGNH3hRdx9SOwYfnGYdZOUIZitN8E+E2vkq3MUMYMvPYl5ZZA==",
-      "requires": {
-        "big.js": "^5.2.2",
-        "emojis-list": "^2.0.0",
-        "json5": "^1.0.1"
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@@ -2098,11 +2063,6 @@
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-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
-      "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
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@@ -2168,11 +2128,6 @@
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       "dev": true
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-    "node-ensure": {
-      "version": "0.0.0",
-      "resolved": "https://registry.npmjs.org/node-ensure/-/node-ensure-0.0.0.tgz",
-      "integrity": "sha1-7K52QVDemYYexcgQ/V0Jaxg5Mqc="
-    },
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@@ -2369,12 +2324,12 @@
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-      "resolved": "https://registry.npmjs.org/pdfjs-dist/-/pdfjs-dist-2.1.266.tgz",
-      "integrity": "sha512-Jy7o1wE3NezPxozexSbq4ltuLT0Z21ew/qrEiAEeUZzHxMHGk4DUV1D7RuCXg5vJDvHmjX1YssN+we9QfRRgXQ==",
+      "version": "2.16.105",
+      "resolved": "https://registry.npmjs.org/pdfjs-dist/-/pdfjs-dist-2.16.105.tgz",
+      "integrity": "sha512-J4dn41spsAwUxCpEoVf6GVoz908IAA3mYiLmNxg8J9kfRXc2jxpbUepcP0ocp0alVNLFthTAM8DZ1RaHh8sU0A==",
       "requires": {
-        "node-ensure": "^0.0.0",
-        "worker-loader": "^2.0.0"
+        "dommatrix": "^1.0.3",
+        "web-streams-polyfill": "^3.2.1"
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@@ -2420,11 +2375,6 @@
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       "dev": true
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-    "punycode": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
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       "resolved": "https://registry.npmjs.org/qs/-/qs-6.2.3.tgz",
@@ -2628,15 +2578,6 @@
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       "dev": true
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-    "schema-utils": {
-      "version": "0.4.7",
-      "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-0.4.7.tgz",
-      "integrity": "sha512-v/iwU6wvwGK8HbU9yi3/nhGzP0yGSuhQMzL6ySiec1FSrZZDkhm4noOSWzrNFo/jEc+SJY6jRTwuwbSXJPDUnQ==",
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-        "ajv-keywords": "^3.1.0"
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       "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.0.tgz",
@@ -3381,14 +3322,6 @@
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       "dev": true
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-    "uri-js": {
-      "version": "4.2.2",
-      "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.2.2.tgz",
-      "integrity": "sha512-KY9Frmirql91X2Qgjry0Wd4Y+YTdrdZheS8TFwvkbLWf/G5KNJDCh6pKL5OZctEW4+0Baa5idK2ZQuELRwPznQ==",
-      "requires": {
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       "resolved": "https://registry.npmjs.org/urix/-/urix-0.1.0.tgz",
@@ -3423,6 +3356,11 @@
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       }
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+    "web-streams-polyfill": {
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+      "resolved": "https://registry.npmjs.org/web-streams-polyfill/-/web-streams-polyfill-3.2.1.tgz",
+      "integrity": "sha512-e0MO3wdXWKrLbL0DgGnUV7WHVuw9OUvL4hjgnPkIeEvESk74gAITi5G606JtZPp39cd8HA9VQzCIvA49LpPN5Q=="
+    },
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       "resolved": "https://registry.npmjs.org/which-module/-/which-module-1.0.0.tgz",
@@ -3435,15 +3373,6 @@
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-      "resolved": "https://registry.npmjs.org/worker-loader/-/worker-loader-2.0.0.tgz",
-      "integrity": "sha512-tnvNp4K3KQOpfRnD20m8xltE3eWh89Ye+5oj7wXEEHKac1P4oZ6p9oTj8/8ExqoSBnk9nu5Pr4nKfQ1hn2APJw==",
-      "requires": {
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-        "schema-utils": "^0.4.0"
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       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
diff --git a/package.json b/package.json
index a322a93..a7fa569 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "AGPL-3.0",
   "dependencies": {
     "dat.gui": "^0.7.6",
-    "pdfjs-dist": "^2.1.266",
+    "pdfjs-dist": "^2.16.105",
     "three": "^0.106.2"
   },
   "devDependencies": {