diff --git a/package-lock.json b/package-lock.json
index 3c9c4b58..f1535a30 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3410,6 +3410,16 @@
         "@types/react-router": "*"
       }
     },
+    "@types/reactstrap": {
+      "version": "8.5.1",
+      "resolved": "https://registry.npmjs.org/@types/reactstrap/-/reactstrap-8.5.1.tgz",
+      "integrity": "sha512-oEedcEGoX8EqDymsjrjzTnmaf3FuDY9qKLZMA9cH1ZkkqBc2V4i2sJ6ssXEod+GHQ5XH2r52uvbMkjEkjEZHDQ==",
+      "dev": true,
+      "requires": {
+        "@types/react": "*",
+        "popper.js": "^1.14.1"
+      }
+    },
     "@types/stack-utils": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz",
diff --git a/package.json b/package.json
index 6d8d8aea..e84df9f7 100644
--- a/package.json
+++ b/package.json
@@ -83,6 +83,7 @@
     "@types/react-dom": "^16.9.8",
     "@types/react-redux": "^7.1.9",
     "@types/react-router-dom": "^5.1.5",
+    "@types/reactstrap": "^8.5.1",
     "adm-zip": "^0.4.13",
     "autoprefixer": "^9.6.3",
     "babel-core": "7.0.0-bridge.0",
diff --git a/src/servers/helpers/ImportServersBtn.js b/src/servers/helpers/ImportServersBtn.js
deleted file mode 100644
index 7bde4df7..00000000
--- a/src/servers/helpers/ImportServersBtn.js
+++ /dev/null
@@ -1,48 +0,0 @@
-import React, { useRef } from 'react';
-import { UncontrolledTooltip } from 'reactstrap';
-import PropTypes from 'prop-types';
-
-const propTypes = {
-  onImport: PropTypes.func,
-  createServers: PropTypes.func,
-  fileRef: PropTypes.oneOfType([ PropTypes.object, PropTypes.node ]),
-};
-
-// FIXME Replace with typescript: (ServersImporter)
-const ImportServersBtn = ({ importServersFromFile }) => {
-  const ImportServersBtnComp = ({ createServers, fileRef, onImport = () => '' }) => {
-    const ref = fileRef || useRef();
-    const onChange = ({ target }) =>
-      importServersFromFile(target.files[0])
-        .then(createServers)
-        .then(onImport)
-        .then(() => {
-          // Reset input after processing file
-          target.value = null;
-        });
-
-    return (
-      <React.Fragment>
-        <button
-          type="button"
-          className="btn btn-outline-secondary mr-2"
-          id="importBtn"
-          onClick={() => ref.current.click()}
-        >
-          Import from file
-        </button>
-        <UncontrolledTooltip placement="top" target="importBtn">
-          You can create servers by importing a CSV file with columns <b>name</b>, <b>apiKey</b> and <b>url</b>.
-        </UncontrolledTooltip>
-
-        <input type="file" accept="text/csv" className="create-server__csv-select" ref={ref} onChange={onChange} />
-      </React.Fragment>
-    );
-  };
-
-  ImportServersBtnComp.propTypes = propTypes;
-
-  return ImportServersBtnComp;
-};
-
-export default ImportServersBtn;
diff --git a/src/servers/helpers/ImportServersBtn.tsx b/src/servers/helpers/ImportServersBtn.tsx
new file mode 100644
index 00000000..e77d69d2
--- /dev/null
+++ b/src/servers/helpers/ImportServersBtn.tsx
@@ -0,0 +1,46 @@
+import React, { useRef, RefObject, ChangeEvent, MutableRefObject } from 'react';
+import { UncontrolledTooltip } from 'reactstrap';
+import ServersImporter from '../services/ServersImporter';
+import { Server } from '../data';
+
+type Ref<T> = RefObject<T> | MutableRefObject<T>;
+
+interface ImportServersBtnProps {
+  createServers: (servers: Server[]) => void;
+  fileRef: Ref<HTMLInputElement>;
+  onImport?: () => void;
+}
+
+const ImportServersBtn = ({ importServersFromFile }: ServersImporter) => (
+  { createServers, fileRef, onImport = () => {} }: ImportServersBtnProps,
+) => {
+  const ref = fileRef ?? useRef<HTMLInputElement>();
+  const onChange = async ({ target }: ChangeEvent<HTMLInputElement>) =>
+    importServersFromFile(target.files?.[0])
+      .then(createServers)
+      .then(onImport)
+      .then(() => {
+        // Reset input after processing file
+        (target as { value: string | null }).value = null;
+      });
+
+  return (
+    <React.Fragment>
+      <button
+        type="button"
+        className="btn btn-outline-secondary mr-2"
+        id="importBtn"
+        onClick={() => ref.current?.click()}
+      >
+        Import from file
+      </button>
+      <UncontrolledTooltip placement="top" target="importBtn">
+        You can create servers by importing a CSV file with columns <b>name</b>, <b>apiKey</b> and <b>url</b>.
+      </UncontrolledTooltip>
+
+      <input type="file" accept="text/csv" className="create-server__csv-select" ref={ref} onChange={onChange} />
+    </React.Fragment>
+  );
+};
+
+export default ImportServersBtn;
diff --git a/src/servers/services/ServersImporter.ts b/src/servers/services/ServersImporter.ts
index d65be66b..17ab38e3 100644
--- a/src/servers/services/ServersImporter.ts
+++ b/src/servers/services/ServersImporter.ts
@@ -6,7 +6,7 @@ const CSV_MIME_TYPE = 'text/csv';
 export default class ServersImporter {
   public constructor(private readonly csvjson: CsvJson, private readonly fileReaderFactory: () => FileReader) {}
 
-  public importServersFromFile = async (file?: File): Promise<RegularServer[]> => {
+  public importServersFromFile = async (file?: File | null): Promise<RegularServer[]> => {
     if (!file || file.type !== CSV_MIME_TYPE) {
       throw new Error('No file provided or file is not a CSV');
     }
diff --git a/test/servers/helpers/ImportServersBtn.test.js b/test/servers/helpers/ImportServersBtn.test.tsx
similarity index 78%
rename from test/servers/helpers/ImportServersBtn.test.js
rename to test/servers/helpers/ImportServersBtn.test.tsx
index fc203d28..7f373fbb 100644
--- a/test/servers/helpers/ImportServersBtn.test.js
+++ b/test/servers/helpers/ImportServersBtn.test.tsx
@@ -1,24 +1,24 @@
 import React from 'react';
-import { shallow } from 'enzyme';
+import { shallow, ShallowWrapper } from 'enzyme';
 import { UncontrolledTooltip } from 'reactstrap';
+import { Mock } from 'ts-mockery';
 import importServersBtnConstruct from '../../../src/servers/helpers/ImportServersBtn';
+import ServersImporter from '../../../src/servers/services/ServersImporter';
 
 describe('<ImportServersBtn />', () => {
-  let wrapper;
+  let wrapper: ShallowWrapper;
   const onImportMock = jest.fn();
   const createServersMock = jest.fn();
-  const serversImporterMock = {
+  const serversImporterMock = Mock.of<ServersImporter>({
     importServersFromFile: jest.fn().mockResolvedValue([]),
-  };
+  });
+  const click = jest.fn();
   const fileRef = {
-    current: { click: jest.fn() },
+    current: Mock.of<HTMLInputElement>({ click }),
   };
 
   beforeEach(() => {
-    onImportMock.mockReset();
-    createServersMock.mockReset();
-    serversImporterMock.importServersFromFile.mockClear();
-    fileRef.current.click.mockReset();
+    jest.clearAllMocks();
 
     const ImportServersBtn = importServersBtnConstruct(serversImporterMock);
 
@@ -39,7 +39,7 @@ describe('<ImportServersBtn />', () => {
 
     btn.simulate('click');
 
-    expect(fileRef.current.click).toHaveBeenCalledTimes(1);
+    expect(click).toHaveBeenCalledTimes(1);
   });
 
   it('imports servers when file input changes', (done) => {