diff --git a/package.json b/package.json
index a773b8eb..79a9dd2f 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,7 @@
   },
   "private": false,
   "devDependencies": {
+    "@types/accept-language-parser": "1.5.2",
     "@types/backbone": "1.3.43",
     "@types/chai": "4.1.7",
     "@types/chai-as-promised": "7.1.0",
@@ -74,6 +75,7 @@
     "@gristlabs/pidusage": "2.0.17",
     "@gristlabs/sqlite3": "4.1.1-grist.1",
     "@popperjs/core": "2.3.3",
+    "accept-language-parser": "1.5.0",
     "async-mutex": "0.2.4",
     "axios": "0.18.0",
     "backbone": "1.3.3",
@@ -100,6 +102,7 @@
     "jquery": "2.2.1",
     "js-yaml": "3.12.0",
     "knockout": "3.5.0",
+    "locale-currency": "0.0.2",
     "lodash": "4.17.15",
     "moment": "2.22.2",
     "moment-timezone": "0.5.21",
diff --git a/yarn.lock b/yarn.lock
index 6d4b22af..c5c2169c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -99,6 +99,11 @@
   resolved "https://registry.yarnpkg.com/@tokenizer/token/-/token-0.1.1.tgz#f0d92c12f87079ddfd1b29f614758b9696bc29e3"
   integrity sha512-XO6INPbZCxdprl+9qa/AAbFFOMzzwqYxpjPgLICrMD6C2FCw6qfJOPcBk6JqqPLSaZ/Qx87qn4rpPmPMwaAK6w==
 
+"@types/accept-language-parser@1.5.2":
+  version "1.5.2"
+  resolved "https://registry.yarnpkg.com/@types/accept-language-parser/-/accept-language-parser-1.5.2.tgz#ea48ed07a3dc9d2ba6666d45c018ad1b5e59d665"
+  integrity sha512-G8NhvYQ4JVT0GhvgPSVDVskFwWhjFvjbTNou3rRkkDgB8dTBZtxZ1xcU9jqJSth5qTGCzbrKwRf+vKleKdrb7w==
+
 "@types/backbone@1.3.43":
   version "1.3.43"
   resolved "https://registry.yarnpkg.com/@types/backbone/-/backbone-1.3.43.tgz#3155bab6e200413d787d1eb75392cc9bd62a0c6a"
@@ -547,6 +552,11 @@ abort-controller@^3.0.0:
   dependencies:
     event-target-shim "^5.0.0"
 
+accept-language-parser@1.5.0:
+  version "1.5.0"
+  resolved "https://registry.yarnpkg.com/accept-language-parser/-/accept-language-parser-1.5.0.tgz#8877c54040a8dcb59e0a07d9c1fde42298334791"
+  integrity sha1-iHfFQECo3LWeCgfZwf3kIpgzR5E=
+
 accepts@~1.3.5:
   version "1.3.7"
   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
@@ -4231,6 +4241,11 @@ loader-utils@^1.1.0, loader-utils@^1.2.3:
     emojis-list "^3.0.0"
     json5 "^1.0.1"
 
+locale-currency@0.0.2:
+  version "0.0.2"
+  resolved "https://registry.yarnpkg.com/locale-currency/-/locale-currency-0.0.2.tgz#e2c90607563ce47a59f9559e45a70e24e4db4b6d"
+  integrity sha1-4skGB1Y85HpZ+VWeRacOJOTbS20=
+
 locate-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"