diff --git a/ui/package.json b/ui/package.json
index 51e89e7..dc8ffc4 100755
--- a/ui/package.json
+++ b/ui/package.json
@@ -24,12 +24,13 @@
     "@angular/platform-browser-dynamic": "^6.1.7",
     "@angular/router": "^6.1.7",
     "@auth0/angular-jwt": "^2.0.0",
+    "@types/hashids": "^1.0.30",
     "angular2-toaster": "^6.1.0",
     "bootswatch": "^4.1.3",
     "clipboard": "^1.7.1",
     "core-js": "^2.4.1",
     "font-awesome": "^4.7.0",
-    "hashids": "^1.1.1",
+    "hashids": "^1.2.2",
     "markdown-it": "^8.3.1",
     "moment": "^2.22.1",
     "ngx-bootstrap": "^2.0.5",
diff --git a/ui/src/app/shared/tools.class.ts b/ui/src/app/shared/tools.class.ts
index b73b341..ccc93e2 100755
--- a/ui/src/app/shared/tools.class.ts
+++ b/ui/src/app/shared/tools.class.ts
@@ -1,6 +1,6 @@
 import { MessageType, User, Candidate, Question, DecodedHashId } from './';
 
-import * as Hashids from 'hashids';
+import {default as Hashids} from 'hashids';
 
 export class Tools {
 
@@ -67,22 +67,22 @@ export class Tools {
 
 
 	static decodeHashId(hashId: string): DecodedHashId {
-		let hashids = new Hashids();
+		let hashids = new Hashids("");
 		if (hashId.startsWith(this.hashIdReadOnlyPrefix)) {
 			return {
-				id: hashids.decode(hashId.split(this.hashIdReadOnlyPrefix)[1]),
+				id: hashids.decode(hashId.split(this.hashIdReadOnlyPrefix)[1])[0],
 				readOnly: true
 			}
 		} else {
 			return {
-				id: hashids.decode(hashId),
+				id: hashids.decode(hashId)[0],
 				readOnly: false
 			}
 		}
 	}
 
 	static encodeHashId(id: number, readOnly: boolean = false): string {
-		let hashids = new Hashids();
+		let hashids = new Hashids("");
 
 		if (!readOnly) {
 			return hashids.encode(id);
diff --git a/ui/yarn.lock b/ui/yarn.lock
index f060f68..7222898 100644
--- a/ui/yarn.lock
+++ b/ui/yarn.lock
@@ -241,11 +241,23 @@
     semver "^5.3.0"
     semver-intersect "^1.1.2"
 
+"@types/hashids@^1.0.30":
+  version "1.0.30"
+  resolved "https://registry.yarnpkg.com/@types/hashids/-/hashids-1.0.30.tgz#c0a056b25c5b13c80bf330fb8d379ac4d4049999"
+  integrity sha512-ESXJxz/GRY+SGa3n0WuWZLR0xM3k8LTr4+2xOoj/a0ZThglF/UfEeKVaMQNNFvFQ+mw3ng8LbC3gmJx/GmR5EQ==
+  dependencies:
+    "@types/node" "*"
+
 "@types/jasmine@2.5.38":
   version "2.5.38"
   resolved "https://registry.yarnpkg.com/@types/jasmine/-/jasmine-2.5.38.tgz#a4379124c4921d4e21de54ec74669c9e9b356717"
   integrity sha1-pDeRJMSSHU4h3lTsdGacnps1Zxc=
 
+"@types/node@*":
+  version "10.11.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-10.11.3.tgz#c055536ac8a5e871701aa01914be5731539d01ee"
+  integrity sha512-3AvcEJAh9EMatxs+OxAlvAEs7OTy6AG94mcH1iqyVDwVVndekLxzwkWQ/Z4SDbY6GO2oyUXyWW8tQ4rENSSQVQ==
+
 "@types/node@^6.0.46", "@types/node@~6.0.60":
   version "6.0.117"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-6.0.117.tgz#ccfc2506001404708528d657aad9c1b931111646"
@@ -3079,7 +3091,7 @@ hash.js@^1.0.0, hash.js@^1.0.3:
     inherits "^2.0.3"
     minimalistic-assert "^1.0.1"
 
-hashids@^1.1.1:
+hashids@^1.2.2:
   version "1.2.2"
   resolved "https://registry.yarnpkg.com/hashids/-/hashids-1.2.2.tgz#28635c7f2f7360ba463686078eee837479e8eafb"
   integrity sha512-dEHCG2LraR6PNvSGxosZHIRgxF5sNLOIBFEHbj8lfP9WWmu/PWPMzsip1drdVSOFi51N2pU7gZavrgn7sbGFuw==