diff --git a/package-lock.json b/package-lock.json
index 788e0bf..037368d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10676,9 +10676,27 @@
       "dev": true
     },
     "i18next": {
-      "version": "13.1.4",
-      "resolved": "https://registry.npmjs.org/i18next/-/i18next-13.1.4.tgz",
-      "integrity": "sha512-qPmjdQrUQ4AGzKBGBpPLC7XiJoqbV/dGmDW/xmwbzAk60eavTkZ+s5FqoSAP2YeurPF8XpNWQaDvXNSWzT0ZYw=="
+      "version": "15.1.3",
+      "resolved": "https://registry.npmjs.org/i18next/-/i18next-15.1.3.tgz",
+      "integrity": "sha512-hN2DZLoRSY2h/RYeNqth5XxV4N1ekKGSJDCGhFmmuXkOCAfK5CkUG4VBv9OBXrvf93xApv0KKBVrb0zJP31EKg==",
+      "requires": {
+        "@babel/runtime": "^7.3.1"
+      },
+      "dependencies": {
+        "@babel/runtime": {
+          "version": "7.4.5",
+          "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.4.5.tgz",
+          "integrity": "sha512-TuI4qpWZP6lGOGIuGWtp9sPluqYICmbk8T/1vpSysqJxRPkudh/ofFWyqdcMsDf2s7KvDL4/YHgKyvcS3g9CJQ==",
+          "requires": {
+            "regenerator-runtime": "^0.13.2"
+          }
+        },
+        "regenerator-runtime": {
+          "version": "0.13.2",
+          "resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.2.tgz",
+          "integrity": "sha512-S/TQAZJO+D3m9xeN1WTI8dLKBBiRgXBlTJvbWjCThHWZj9EvHK70Ff50/tYj2J/fvBY6JtFVwRuazHN2E7M9BA=="
+        }
+      }
     },
     "i18next-browser-languagedetector": {
       "version": "2.2.4",
diff --git a/package.json b/package.json
index ff69408..c43d50f 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "bootstrap": "^4.3.1",
     "bootstrap-daterangepicker": "^3.0.5",
     "chart.js": "^2.8.0",
-    "i18next": "^13.1.4",
+    "i18next": "^15.1.3",
     "i18next-browser-languagedetector": "^2.2.4",
     "i18next-xhr-backend": "^2.0.1",
     "ionicons": "^4.5.8",
diff --git a/src/components/common/Sidebar.tsx b/src/components/common/Sidebar.tsx
index 3b2dc06..625cf5c 100644
--- a/src/components/common/Sidebar.tsx
+++ b/src/components/common/Sidebar.tsx
@@ -37,7 +37,7 @@ export const PiholeNavItem = ({
   t
 }: {
   item: RouteItem;
-  t: i18next.TranslationFunction;
+  t: i18next.TFunction;
 }): ReactElement => (
   <NavItem>
     <NavLink
@@ -66,7 +66,7 @@ export const PiholeNavDropdown = ({
   location
 }: {
   item: RouteGroup;
-  t: i18next.TranslationFunction;
+  t: i18next.TFunction;
   location: Location;
 }): ReactElement => (
   <NavDropdown
@@ -92,7 +92,7 @@ export const NavList = ({
   location
 }: {
   items: Array<RouteData>;
-  t: i18next.TranslationFunction;
+  t: i18next.TFunction;
   location: Location;
 }): ReactElement => (
   <Fragment>
diff --git a/src/components/common/__tests__/Sidebar.test.tsx b/src/components/common/__tests__/Sidebar.test.tsx
index 56ef07f..4caa1a1 100644
--- a/src/components/common/__tests__/Sidebar.test.tsx
+++ b/src/components/common/__tests__/Sidebar.test.tsx
@@ -15,6 +15,8 @@ import api from "../../../util/api";
 import { RouteCustomItem, RouteGroup } from "../../../routes";
 import NavDropdown from "../NavDropdown";
 
+const t = global.t;
+
 it("expands active drop down items", () => {
   const item: RouteGroup = {
     name: "testName",
@@ -27,7 +29,7 @@ it("expands active drop down items", () => {
   const wrapper = shallow(
     <PiholeNavDropdown
       item={item}
-      t={key => key}
+      t={t}
       location={{ pathname: "/testRoute/page" } as Location}
     />
   );
@@ -47,7 +49,7 @@ it("does not expand inactive drop down items", () => {
   const wrapper = shallow(
     <PiholeNavDropdown
       item={item}
-      t={key => key}
+      t={t}
       location={{ pathname: "/page" } as Location}
     />
   );
@@ -63,7 +65,7 @@ it("creates nav items with correct data", () => {
     auth: false,
     component: () => <div />
   };
-  const wrapper = shallow(<PiholeNavItem item={item} t={key => key} />);
+  const wrapper = shallow(<PiholeNavItem item={item} t={t} />);
 
   expect(wrapper.childAt(0)).toHaveProp("to", item.url);
   expect(wrapper.childAt(0).childAt(0)).toHaveClassName(item.icon);
@@ -80,7 +82,7 @@ it("creates a nav dropdown with correct data", () => {
   };
   const location = { pathname: "/blacklist/exact" } as Location;
   const wrapper = shallow(
-    <PiholeNavDropdown item={item} t={key => key} location={location} />
+    <PiholeNavDropdown item={item} t={t} location={location} />
   );
 
   expect(wrapper).toHaveProp("icon", item.icon);
@@ -99,7 +101,7 @@ it("shows auth routes when logged in", () => {
     auth: true
   };
   const wrapper = shallow(
-    <NavList items={[item]} t={key => key} location={{} as Location} />
+    <NavList items={[item]} t={t} location={{} as Location} />
   );
 
   expect(wrapper.children()).toHaveLength(1);
@@ -116,7 +118,7 @@ it("hides auth routes when not logged in", () => {
     auth: true
   };
   const wrapper = shallow(
-    <NavList items={[item]} t={key => key} location={{} as Location} />
+    <NavList items={[item]} t={t} location={{} as Location} />
   );
 
   expect(wrapper.children()).toHaveLength(0);
@@ -134,7 +136,7 @@ it("hides strict non-auth routes when logged in", () => {
     authStrict: true
   };
   const wrapper = shallow(
-    <NavList items={[item]} t={key => key} location={{} as Location} />
+    <NavList items={[item]} t={t} location={{} as Location} />
   );
 
   expect(wrapper.children()).toHaveLength(0);
@@ -152,7 +154,7 @@ it("hides strict auth routes when not logged in", () => {
     authStrict: true
   };
   const wrapper = shallow(
-    <NavList items={[item]} t={key => key} location={{} as Location} />
+    <NavList items={[item]} t={t} location={{} as Location} />
   );
 
   expect(wrapper.children()).toHaveLength(0);
@@ -165,7 +167,7 @@ it("uses a custom component if given", () => {
     customComponent: () => null
   };
   const wrapper = shallow(
-    <NavList items={[item]} t={key => key} location={{} as Location} />
+    <NavList items={[item]} t={t} location={{} as Location} />
   );
 
   expect(wrapper.children()).toHaveLength(1);
diff --git a/src/components/dashboard/TimeRangeSelector.tsx b/src/components/dashboard/TimeRangeSelector.tsx
index dfe0a7c..d69bd7a 100644
--- a/src/components/dashboard/TimeRangeSelector.tsx
+++ b/src/components/dashboard/TimeRangeSelector.tsx
@@ -58,7 +58,7 @@ const renderLabel = (
   }
 
   if (!props.range) {
-    return t("Last 24 Hours");
+    return t<string>("Last 24 Hours");
   }
 
   if (props.range.name === "Custom Range") {
diff --git a/src/components/dashboard/TopBlockedClients.tsx b/src/components/dashboard/TopBlockedClients.tsx
index a879015..ecf3949 100644
--- a/src/components/dashboard/TopBlockedClients.tsx
+++ b/src/components/dashboard/TopBlockedClients.tsx
@@ -39,7 +39,7 @@ export const transformData = (
  * @param t The translation function
  * @returns Rows of top blocked clients
  */
-export const generateRows = (t: i18next.TranslationFunction) => (
+export const generateRows = (t: i18next.TFunction) => (
   data: TopBlockedClientsData
 ): ReactNode => {
   return data.topClients.map(item => {
diff --git a/src/components/dashboard/TopBlockedDomains.tsx b/src/components/dashboard/TopBlockedDomains.tsx
index 6e118f4..d658c02 100644
--- a/src/components/dashboard/TopBlockedDomains.tsx
+++ b/src/components/dashboard/TopBlockedDomains.tsx
@@ -39,7 +39,7 @@ export const transformData = (
  * @param t the translation function
  * @returns {function(*): any[]} a function to generate rows of top blocked
  */
-export const generateRows = (t: i18next.TranslationFunction) => (
+export const generateRows = (t: i18next.TFunction) => (
   data: TopBlockedDomainsData
 ) => {
   return data.topBlocked.map(item => {
diff --git a/src/components/dashboard/TopClients.tsx b/src/components/dashboard/TopClients.tsx
index bf789ac..03194ad 100644
--- a/src/components/dashboard/TopClients.tsx
+++ b/src/components/dashboard/TopClients.tsx
@@ -37,7 +37,7 @@ export const transformData = (data: ApiTopClients): TopClientsData => ({
  * @param t the translation function
  * @returns {function(*): any[]} a function to generate rows of top clients
  */
-export const generateRows = (t: i18next.TranslationFunction) => (
+export const generateRows = (t: i18next.TFunction) => (
   data: TopClientsData
 ) => {
   return data.topClients.map(item => {
diff --git a/src/components/dashboard/TopDomains.tsx b/src/components/dashboard/TopDomains.tsx
index 3bbca52..bc745e5 100644
--- a/src/components/dashboard/TopDomains.tsx
+++ b/src/components/dashboard/TopDomains.tsx
@@ -37,7 +37,7 @@ export const transformData = (data: ApiTopDomains): TopDomainsData => ({
  * @param t the translation function
  * @returns {function(*): any[]} a function to generate rows of top domains
  */
-export const generateRows = (t: i18next.TranslationFunction) => (
+export const generateRows = (t: i18next.TFunction) => (
   data: TopDomainsData
 ) => {
   return data.topDomains.map(item => {
diff --git a/src/components/dashboard/__tests__/TopBlockedClients.test.tsx b/src/components/dashboard/__tests__/TopBlockedClients.test.tsx
index 2e46c3d..2b0e178 100644
--- a/src/components/dashboard/__tests__/TopBlockedClients.test.tsx
+++ b/src/components/dashboard/__tests__/TopBlockedClients.test.tsx
@@ -35,7 +35,7 @@ it("transforms the API data correctly", async () => {
 });
 
 it("creates an appropriately sized table", async () => {
-  const rows = generateRows(key => key)(transformData(fakeData));
+  const rows = generateRows(global.t)(transformData(fakeData));
 
   expect(rows).toHaveLength(fakeData.top_clients.length);
 });
diff --git a/src/components/dashboard/__tests__/TopBlockedDomains.test.tsx b/src/components/dashboard/__tests__/TopBlockedDomains.test.tsx
index 8d133ec..63012cd 100644
--- a/src/components/dashboard/__tests__/TopBlockedDomains.test.tsx
+++ b/src/components/dashboard/__tests__/TopBlockedDomains.test.tsx
@@ -35,7 +35,7 @@ it("transforms the API data correctly", async () => {
 });
 
 it("creates an appropriately sized table", async () => {
-  const rows = generateRows(key => key)(transformData(fakeData));
+  const rows = generateRows(global.t)(transformData(fakeData));
 
   expect(rows).toHaveLength(fakeData.top_domains.length);
 });
diff --git a/src/components/dashboard/__tests__/TopClients.test.tsx b/src/components/dashboard/__tests__/TopClients.test.tsx
index 47cfc65..972c83d 100644
--- a/src/components/dashboard/__tests__/TopClients.test.tsx
+++ b/src/components/dashboard/__tests__/TopClients.test.tsx
@@ -35,7 +35,7 @@ it("transforms the API data correctly", async () => {
 });
 
 it("creates an appropriately sized table", async () => {
-  const rows = generateRows(key => key)(transformData(fakeData));
+  const rows = generateRows(global.t)(transformData(fakeData));
 
   expect(rows).toHaveLength(fakeData.top_clients.length);
 });
diff --git a/src/components/dashboard/__tests__/TopDomains.test.tsx b/src/components/dashboard/__tests__/TopDomains.test.tsx
index 6be5720..eaf203c 100644
--- a/src/components/dashboard/__tests__/TopDomains.test.tsx
+++ b/src/components/dashboard/__tests__/TopDomains.test.tsx
@@ -35,7 +35,7 @@ it("transforms the API data correctly", async () => {
 });
 
 it("creates an appropriately sized table", async () => {
-  const rows = generateRows(key => key)(transformData(fakeData));
+  const rows = generateRows(global.t)(transformData(fakeData));
 
   expect(rows).toHaveLength(fakeData.top_domains.length);
 });
diff --git a/src/components/log/QueryLog.tsx b/src/components/log/QueryLog.tsx
index ab11b26..f2d5c3d 100644
--- a/src/components/log/QueryLog.tsx
+++ b/src/components/log/QueryLog.tsx
@@ -47,7 +47,7 @@ export interface QueryLogState {
  *
  * @param t The translation function
  */
-const getDefaultRange = (t: i18next.TranslationFunction): TimeRange => {
+const getDefaultRange = (t: i18next.TFunction): TimeRange => {
   const translatedDateRanges = dateRanges(t);
   const last24Hours = t("Last 24 Hours");
 
@@ -295,7 +295,7 @@ class QueryLog extends Component<WithNamespaces, QueryLogState> {
  * Convert a status code to a status message. The messages are translated, so
  * you must pass in the translation function before using the message array.
  */
-const status = (t: i18next.TranslationFunction) => [
+const status = (t: i18next.TFunction) => [
   t("Unknown"),
   t("Blocked (gravity)"),
   t("Allowed (forwarded)"),
@@ -309,7 +309,7 @@ const status = (t: i18next.TranslationFunction) => [
  * Convert a DNSSEC code to a DNSSEC message. The messages are translated, so
  * you must pass in the translation function before using the message array.
  */
-const dnssec = (t: i18next.TranslationFunction) => [
+const dnssec = (t: i18next.TFunction) => [
   "N/A", // Unspecified, which means DNSSEC is off, so nothing should be shown
   t("Secure"),
   t("Insecure"),
@@ -331,7 +331,7 @@ const dnssecColor = [
  * Convert a reply type code to a reply type. The unknown type is translated, so
  * you must pass in the translation function before using the message array.
  */
-const replyTypes = (t: i18next.TranslationFunction) => [
+const replyTypes = (t: i18next.TFunction) => [
   t("Unknown"),
   "NODATA",
   "NXDOMAIN",
@@ -358,7 +358,7 @@ const queryTypes = ["A", "AAAA", "ANY", "SRV", "SOA", "PTR", "TXT"];
  */
 const selectionFilter = (
   items: string[],
-  t: i18next.TranslationFunction,
+  t: i18next.TFunction,
   extras: Array<{ name: string; value: any }> = []
 ) => {
   return ({
@@ -392,7 +392,7 @@ const selectionFilter = (
  * The columns of the Query Log. Some pieces are translated, so you must pass in
  * the translation function before using the columns.
  */
-const columns = (t: i18next.TranslationFunction) => [
+const columns = (t: i18next.TFunction) => [
   {
     Header: t("Time"),
     id: "time",
diff --git a/src/components/settings/ConditionalForwardingSettings.tsx b/src/components/settings/ConditionalForwardingSettings.tsx
index 9bdc1eb..df00d47 100644
--- a/src/components/settings/ConditionalForwardingSettings.tsx
+++ b/src/components/settings/ConditionalForwardingSettings.tsx
@@ -23,7 +23,7 @@ export interface ConditionalForwardingSettingsProps {
   onUpdate: (settings: ConditionalForwardingObject) => void;
   isRouterIpValid: boolean;
   isDomainValid: boolean;
-  t: i18next.TranslationFunction;
+  t: i18next.TFunction;
 }
 
 const ConditionalForwardingSettings = ({
diff --git a/src/components/settings/DnsOptionSettings.tsx b/src/components/settings/DnsOptionSettings.tsx
index 60a0bab..1e59ce8 100644
--- a/src/components/settings/DnsOptionSettings.tsx
+++ b/src/components/settings/DnsOptionSettings.tsx
@@ -23,7 +23,7 @@ export interface DnsOptionsObject {
 export interface DnsOptionSettingsProps {
   settings: DnsOptionsObject;
   onUpdate: (settings: DnsOptionsObject) => void;
-  t: i18next.TranslationFunction;
+  t: i18next.TFunction;
 }
 
 const DnsOptionSettings = ({
diff --git a/src/routes.tsx b/src/routes.tsx
index 7999fd7..56d4421 100644
--- a/src/routes.tsx
+++ b/src/routes.tsx
@@ -22,9 +22,7 @@ import Preferences from "./views/Preferences";
 import i18next from "i18next";
 import { ComponentType } from "react";
 
-export const routes = (
-  t: i18next.TranslationFunction
-): { [key: string]: string } => ({
+export const routes = (t: i18next.TFunction): { [key: string]: string } => ({
   "/dashboard": t("Dashboard"),
   "/query-log": t("Query Log"),
   "/whitelist": t("Whitelist"),
diff --git a/src/setupTests.tsx b/src/setupTests.tsx
index cb5e536..73e537e 100644
--- a/src/setupTests.tsx
+++ b/src/setupTests.tsx
@@ -14,17 +14,21 @@ import "jest-enzyme";
 import api from "./util/api";
 import fetchMock from "fetch-mock";
 import "jest-localstorage-mock";
+import i18next from "i18next";
 
 // Setup enzyme
 configure({ adapter: new Adapter() });
 
+// A fake translation function which returns its input as the output
+global.t = ((key: string) => key) as i18next.TFunction;
+
 // Mock out react-i18next
 jest.mock("react-i18next", () => ({
   // This mock makes sure any components using the withNamespaces HoC receive the t function as a prop
   withNamespaces: () => (component: any) => {
     component.defaultProps = {
       ...component.defaultProps,
-      t: (key: string) => key
+      t: global.t
     };
     return component;
   }
diff --git a/src/types/global.d.ts b/src/types/global.d.ts
index b1dfb0c..f7c201e 100644
--- a/src/types/global.d.ts
+++ b/src/types/global.d.ts
@@ -9,8 +9,11 @@
  * Please see LICENSE file for your rights under this license. */
 
 namespace NodeJS {
+  import i18next from "i18next";
+
   interface Global {
     tick(): Promise<any>
     ignoreAPI(): Promise<any>
+    t: i18next.TFunction
   }
 }
diff --git a/src/util/dateRanges.tsx b/src/util/dateRanges.tsx
index ac49699..d50424d 100644
--- a/src/util/dateRanges.tsx
+++ b/src/util/dateRanges.tsx
@@ -29,7 +29,7 @@ const epoch = moment(0);
  * @param t The translation function
  */
 export const dateRanges: (
-  t: i18next.TranslationFunction
+  t: i18next.TFunction
 ) => { [name: string]: [Moment, Moment] } = t => ({
   [t("Last 24 Hours")]: [oneDayAgo, now],
   [t("Today")]: [startOfDay, now],