diff --git a/package.json b/package.json
index 47b7cf3..e3f7a65 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "merge-options": "^3.0.3",
     "openpgp": "^4.10.9",
     "prettier": "^2.1.2",
+    "query-string": "^6.14.1",
     "valid-url": "^1.0.9"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index ccf0fdf..9386b97 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -694,6 +694,11 @@ decamelize@^4.0.0:
   resolved "https://registry.yarnpkg.com/decamelize/-/decamelize-4.0.0.tgz#aa472d7bf660eb15f3494efd531cab7f2a709837"
   integrity sha512-9iE1PgSik9HeIIw2JO94IidnE3eBoQrFJ3w7sFuzSX4DpmZ3v5sZpUiV5Swcf6mQEF+Y0ru8Neo+p+nyh2J+hQ==
 
+decode-uri-component@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/decode-uri-component/-/decode-uri-component-0.2.0.tgz#eb3913333458775cb84cd1a1fae062106bb87545"
+  integrity sha1-6zkTMzRYd1y4TNGh+uBiEGu4dUU=
+
 deep-eql@^3.0.1:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/deep-eql/-/deep-eql-3.0.1.tgz#dfc9404400ad1c8fe023e7da1df1c147c4b444df"
@@ -965,6 +970,11 @@ fill-range@^7.0.1:
   dependencies:
     to-regex-range "^5.0.1"
 
+filter-obj@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/filter-obj/-/filter-obj-1.1.0.tgz#9b311112bc6c6127a16e016c6c5d7f19e0805c5b"
+  integrity sha1-mzERErxsYSehbgFsbF1/GeCAXFs=
+
 find-parent-dir@~0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/find-parent-dir/-/find-parent-dir-0.3.0.tgz#33c44b429ab2b2f0646299c5f9f718f376ff8d54"
@@ -1845,6 +1855,16 @@ punycode@^1.3.2:
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.4.1.tgz#c0d5a63b2718800ad8e1eb0fa5269c84dd41845e"
   integrity sha1-wNWmOycYgArY4esPpSachN1BhF4=
 
+query-string@^6.14.1:
+  version "6.14.1"
+  resolved "https://registry.yarnpkg.com/query-string/-/query-string-6.14.1.tgz#7ac2dca46da7f309449ba0f86b1fd28255b0c86a"
+  integrity sha512-XDxAeVmpfu1/6IjyT/gXHOl+S0vQ9owggJ30hhWKdHAsNPOcasn5o9BW0eejZqL2e4vMjhAxoW3jVHcD6mbcYw==
+  dependencies:
+    decode-uri-component "^0.2.0"
+    filter-obj "^1.1.0"
+    split-on-first "^1.0.0"
+    strict-uri-encode "^2.0.0"
+
 querystring-es3@~0.2.0:
   version "0.2.1"
   resolved "https://registry.yarnpkg.com/querystring-es3/-/querystring-es3-0.2.1.tgz#9ec61f79049875707d69414596fd907a4d711e73"
@@ -2081,6 +2101,11 @@ source-map@~0.7.2:
   resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
   integrity sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==
 
+split-on-first@^1.0.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/split-on-first/-/split-on-first-1.1.0.tgz#f610afeee3b12bce1d0c30425e76398b78249a5f"
+  integrity sha512-43ZssAJaMusuKWL8sKUBQXHWOpq8d6CfN/u1p4gUzfJkM05C8rxTmYrkIPTXapZpORA6LkkzcUulJ8FqA7Uudw==
+
 sprintf-js@~1.0.2:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
@@ -2120,6 +2145,11 @@ stream-splicer@^2.0.0:
     inherits "^2.0.1"
     readable-stream "^2.0.2"
 
+strict-uri-encode@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/strict-uri-encode/-/strict-uri-encode-2.0.0.tgz#b9c7330c7042862f6b142dc274bbcc5866ce3546"
+  integrity sha1-ucczDHBChi9rFC3CdLvMWGbONUY=
+
 "string-width@^1.0.2 || 2":
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-2.1.1.tgz#ab93f27a8dc13d28cac815c462143a6d9012ae9e"