diff --git a/package-lock.json b/package-lock.json
index a6d9618..296539f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
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-        "cose-js": "^0.4.2"
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@@ -73,39 +73,11 @@
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@@ -168,20 +141,6 @@
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-      "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.0.6.tgz",
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@@ -191,6 +150,14 @@
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+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
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@@ -224,15 +192,6 @@
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@@ -389,11 +330,6 @@
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@@ -475,74 +412,46 @@
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@@ -577,35 +486,6 @@
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-        "readable-stream": "^2.3.0",
-        "to-buffer": "^1.1.1",
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-    "to-buffer": {
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-      "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
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@@ -3947,16 +2791,6 @@
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     },
-    "unzip-response": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/unzip-response/-/unzip-response-1.0.2.tgz",
-      "integrity": "sha1-uYTwh3/AqJwsdzzB73tbIytbBv4="
-    },
-    "util-deprecate": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
-    },
     "vows": {
       "version": "0.5.13",
       "resolved": "https://registry.npmjs.org/vows/-/vows-0.5.13.tgz",
@@ -3984,6 +2818,7 @@
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+      "dev": true,
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         "string-width": "^1.0.2 || 2"
       }
@@ -4066,12 +2901,8 @@
     "wrappy": {
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
-    },
-    "xtend": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
-      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
     },
     "y18n": {
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@@ -4079,11 +2910,6 @@
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-    "yallist": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",
-      "integrity": "sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g=="
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     "yargs": {
       "version": "13.3.2",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
@@ -4222,4 +3048,4 @@
       "dev": true
     }
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index ee571d6..f5a64c0 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
   },
   "dependencies": {
     "cbor": "^7.0.5",
-    "cose-js": "^0.4.2"
+    "cose-js": "^0.8.4"
   },
   "files": [
     "dist/"