diff --git a/package-lock.json b/package-lock.json
index fd638f0..dad99a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,32 +13,11 @@
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-      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.4.1.tgz",
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       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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-    "big.js": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/big.js/-/big.js-5.2.2.tgz",
-      "integrity": "sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ=="
-    },
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       "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
@@ -102,16 +81,16 @@
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       "integrity": "sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA="
     },
+    "dommatrix": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmmirror.com/dommatrix/-/dommatrix-1.0.3.tgz",
+      "integrity": "sha512-l32Xp/TLgWb8ReqbVJAFIvXmY7go4nTxxlWiAFyhoQw9RKEOHBZNnyGvJWqDVSPmq3Y9HlM4npqF/T6VMOXhww=="
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
-    "emojis-list": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-3.0.0.tgz",
-      "integrity": "sha512-/kyM18EfinwXZbno9FyUGeFh87KC8HRQBQGildHZbEuRyWFOmv1U10o9BBp8XVZDVNNuQKyIGIu5ZYAAXJ0V2Q=="
-    },
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       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz",
@@ -164,16 +143,6 @@
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-    "fast-deep-equal": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.1.tgz",
-      "integrity": "sha512-8UEa58QDLauDNfpbrX55Q9jrGHThw2ZMdOky5Gl1CDtVeJDPVrG4Jxx1N8jw2gkWaff5UUuX1KJd+9zGe2B+ZA=="
-    },
-    "fast-json-stable-stringify": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
-      "integrity": "sha512-lhd/wF+Lk98HZoTCtlVraHtfh5XYijIjalXck7saUtuanSDyLMxnHhSXEDJqHxD7msR8D0uCmqlkwjCV8xvwHw=="
-    },
     "finalhandler": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/finalhandler/-/finalhandler-1.1.2.tgz",
@@ -228,29 +197,6 @@
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     },
-    "json-schema-traverse": {
-      "version": "0.4.1",
-      "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-0.4.1.tgz",
-      "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg=="
-    },
-    "json5": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/json5/-/json5-1.0.1.tgz",
-      "integrity": "sha512-aKS4WQjPenRxiQsC93MNfjx+nbF4PAdYzmd/1JIj8HYzqfbu86beTuNgXDzPknWk0n0uARlyewZo4s++ES36Ow==",
-      "requires": {
-        "minimist": "^1.2.0"
-      }
-    },
-    "loader-utils": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.0.tgz",
-      "integrity": "sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==",
-      "requires": {
-        "big.js": "^5.2.2",
-        "emojis-list": "^3.0.0",
-        "json5": "^1.0.1"
-      }
-    },
     "media-typer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/media-typer/-/media-typer-0.3.0.tgz",
@@ -284,11 +230,6 @@
         "mime-db": "1.43.0"
       }
     },
-    "minimist": {
-      "version": "1.2.5",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
-      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
-    },
     "ms": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
@@ -299,11 +240,6 @@
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
       "integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
     },
-    "node-ensure": {
-      "version": "0.0.0",
-      "resolved": "https://registry.npmjs.org/node-ensure/-/node-ensure-0.0.0.tgz",
-      "integrity": "sha1-7K52QVDemYYexcgQ/V0Jaxg5Mqc="
-    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",
@@ -323,12 +259,12 @@
       "integrity": "sha1-32BBeABfUi8V60SQ5yR6G/qmf4w="
     },
     "pdfjs-dist": {
-      "version": "2.3.200",
-      "resolved": "https://registry.npmjs.org/pdfjs-dist/-/pdfjs-dist-2.3.200.tgz",
-      "integrity": "sha512-+8wBjU5h8LPZOIvR9X2uCrp/8xWQG1DRDKMLg5lzGN1qyIAZlYUxA0KQyy12Nw5jN7ozulC6v97PMaDcLgAcFg==",
+      "version": "2.16.105",
+      "resolved": "https://registry.npmmirror.com/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"
       }
     },
     "proxy-addr": {
@@ -340,11 +276,6 @@
         "ipaddr.js": "1.9.1"
       }
     },
-    "punycode": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.1.tgz",
-      "integrity": "sha512-XRsRjdf+j5ml+y/6GKHPZbrF/8p2Yga0JPtdqTIY2Xe5ohJPD9saDJJLPvp9+NSBprVvevdXZybnj2cv8OEd0A=="
-    },
     "qs": {
       "version": "6.7.0",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.7.0.tgz",
@@ -381,15 +312,6 @@
       "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg=="
     },
-    "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==",
-      "requires": {
-        "ajv": "^6.1.0",
-        "ajv-keywords": "^3.1.0"
-      }
-    },
     "send": {
       "version": "0.17.1",
       "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
@@ -457,14 +379,6 @@
       "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
     },
-    "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": {
-        "punycode": "^2.1.0"
-      }
-    },
     "utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -475,14 +389,10 @@
       "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
     },
-    "worker-loader": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/worker-loader/-/worker-loader-2.0.0.tgz",
-      "integrity": "sha512-tnvNp4K3KQOpfRnD20m8xltE3eWh89Ye+5oj7wXEEHKac1P4oZ6p9oTj8/8ExqoSBnk9nu5Pr4nKfQ1hn2APJw==",
-      "requires": {
-        "loader-utils": "^1.0.0",
-        "schema-utils": "^0.4.0"
-      }
+    "web-streams-polyfill": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmmirror.com/web-streams-polyfill/-/web-streams-polyfill-3.2.1.tgz",
+      "integrity": "sha512-e0MO3wdXWKrLbL0DgGnUV7WHVuw9OUvL4hjgnPkIeEvESk74gAITi5G606JtZPp39cd8HA9VQzCIvA49LpPN5Q=="
     }
   }
 }
diff --git a/package.json b/package.json
index bd1d5d8..9e986dc 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "homepage": "https://github.com/juicecube/pdf-viewer#readme",
   "dependencies": {
     "express": "^4.17.1",
-    "pdfjs-dist": "^2.3.200",
+    "pdfjs-dist": "^2.16.105",
     "querystring": "^0.2.0"
   }
 }