diff --git a/app/soapbox/features/admin/components/registration_mode_picker.js b/app/soapbox/features/admin/components/registration_mode_picker.js
deleted file mode 100644
index 275d9b0c0..000000000
--- a/app/soapbox/features/admin/components/registration_mode_picker.js
+++ /dev/null
@@ -1,88 +0,0 @@
-import React from 'react';
-import ImmutablePureComponent from 'react-immutable-pure-component';
-import { injectIntl, defineMessages, FormattedMessage } from 'react-intl';
-import { connect } from 'react-redux';
-
-import { updateConfig } from 'soapbox/actions/admin';
-import snackbar from 'soapbox/actions/snackbar';
-import {
-  SimpleForm,
-  FieldsGroup,
-  RadioGroup,
-  RadioItem,
-} from 'soapbox/features/forms';
-
-const messages = defineMessages({
-  saved: { id: 'admin.dashboard.settings_saved', defaultMessage: 'Settings saved!' },
-});
-
-const mapStateToProps = (state, props) => ({
-  mode: modeFromInstance(state.get('instance')),
-});
-
-const generateConfig = mode => {
-  const configMap = {
-    open: [{ tuple: [':registrations_open', true] }, { tuple: [':account_approval_required', false] }],
-    approval: [{ tuple: [':registrations_open', true] }, { tuple: [':account_approval_required', true] }],
-    closed: [{ tuple: [':registrations_open', false] }],
-  };
-
-  return [{
-    group: ':pleroma',
-    key: ':instance',
-    value: configMap[mode],
-  }];
-};
-
-const modeFromInstance = instance => {
-  if (instance.get('approval_required') && instance.get('registrations')) return 'approval';
-  return instance.get('registrations') ? 'open' : 'closed';
-};
-
-export default @connect(mapStateToProps)
-@injectIntl
-class RegistrationModePicker extends ImmutablePureComponent {
-
-  onChange = e => {
-    const { dispatch, intl } = this.props;
-    const config = generateConfig(e.target.value);
-    dispatch(updateConfig(config)).then(() => {
-      dispatch(snackbar.success(intl.formatMessage(messages.saved)));
-    }).catch(() => {});
-  }
-
-  render() {
-    const { mode } = this.props;
-
-    return (
-      <SimpleForm>
-        <FieldsGroup>
-          <RadioGroup
-            label={<FormattedMessage id='admin.dashboard.registration_mode_label' defaultMessage='Registrations' />}
-            onChange={this.onChange}
-          >
-            <RadioItem
-              label={<FormattedMessage id='admin.dashboard.registration_mode.open_label' defaultMessage='Open' />}
-              hint={<FormattedMessage id='admin.dashboard.registration_mode.open_hint' defaultMessage='Anyone can join.' />}
-              checked={mode === 'open'}
-              value='open'
-            />
-            <RadioItem
-              label={<FormattedMessage id='admin.dashboard.registration_mode.approval_label' defaultMessage='Approval Required' />}
-              hint={<FormattedMessage id='admin.dashboard.registration_mode.approval_hint' defaultMessage='Users can sign up, but their account only gets activated when an admin approves it.' />}
-              checked={mode === 'approval'}
-              value='approval'
-            />
-            <RadioItem
-              label={<FormattedMessage id='admin.dashboard.registration_mode.closed_label' defaultMessage='Closed' />}
-              hint={<FormattedMessage id='admin.dashboard.registration_mode.closed_hint' defaultMessage='Nobody can sign up. You can still invite people.' />}
-              checked={mode === 'closed'}
-              value='closed'
-            />
-          </RadioGroup>
-        </FieldsGroup>
-      </SimpleForm>
-    );
-  }
-
-}
diff --git a/app/soapbox/features/admin/components/registration_mode_picker.tsx b/app/soapbox/features/admin/components/registration_mode_picker.tsx
new file mode 100644
index 000000000..5808ace63
--- /dev/null
+++ b/app/soapbox/features/admin/components/registration_mode_picker.tsx
@@ -0,0 +1,86 @@
+import React from 'react';
+import { useIntl, defineMessages, FormattedMessage } from 'react-intl';
+
+import { updateConfig } from 'soapbox/actions/admin';
+import snackbar from 'soapbox/actions/snackbar';
+import {
+  SimpleForm,
+  FieldsGroup,
+  RadioGroup,
+  RadioItem,
+} from 'soapbox/features/forms';
+import { useAppSelector, useAppDispatch } from 'soapbox/hooks';
+
+import type { Instance } from 'soapbox/types/entities';
+
+type RegistrationMode = 'open' | 'approval' | 'closed';
+
+const messages = defineMessages({
+  saved: { id: 'admin.dashboard.settings_saved', defaultMessage: 'Settings saved!' },
+});
+
+const generateConfig = (mode: RegistrationMode) => {
+  const configMap = {
+    open: [{ tuple: [':registrations_open', true] }, { tuple: [':account_approval_required', false] }],
+    approval: [{ tuple: [':registrations_open', true] }, { tuple: [':account_approval_required', true] }],
+    closed: [{ tuple: [':registrations_open', false] }],
+  };
+
+  return [{
+    group: ':pleroma',
+    key: ':instance',
+    value: configMap[mode],
+  }];
+};
+
+const modeFromInstance = (instance: Instance): RegistrationMode => {
+  if (instance.approval_required && instance.registrations) return 'approval';
+  return instance.registrations ? 'open' : 'closed';
+};
+
+/** Allows changing the registration mode of the instance, eg "open", "closed", "approval" */
+const RegistrationModePicker: React.FC = () => {
+  const intl = useIntl();
+  const dispatch = useAppDispatch();
+
+  const mode = useAppSelector(state => modeFromInstance(state.instance));
+
+  const onChange: React.ChangeEventHandler<HTMLInputElement> = e => {
+    const config = generateConfig(e.target.value as RegistrationMode);
+    dispatch(updateConfig(config)).then(() => {
+      dispatch(snackbar.success(intl.formatMessage(messages.saved)));
+    }).catch(() => {});
+  };
+
+  return (
+    <SimpleForm>
+      <FieldsGroup>
+        <RadioGroup
+          label={<FormattedMessage id='admin.dashboard.registration_mode_label' defaultMessage='Registrations' />}
+          onChange={onChange}
+        >
+          <RadioItem
+            label={<FormattedMessage id='admin.dashboard.registration_mode.open_label' defaultMessage='Open' />}
+            hint={<FormattedMessage id='admin.dashboard.registration_mode.open_hint' defaultMessage='Anyone can join.' />}
+            checked={mode === 'open'}
+            value='open'
+          />
+          <RadioItem
+            label={<FormattedMessage id='admin.dashboard.registration_mode.approval_label' defaultMessage='Approval Required' />}
+            hint={<FormattedMessage id='admin.dashboard.registration_mode.approval_hint' defaultMessage='Users can sign up, but their account only gets activated when an admin approves it.' />}
+            checked={mode === 'approval'}
+            value='approval'
+          />
+          <RadioItem
+            label={<FormattedMessage id='admin.dashboard.registration_mode.closed_label' defaultMessage='Closed' />}
+            hint={<FormattedMessage id='admin.dashboard.registration_mode.closed_hint' defaultMessage='Nobody can sign up. You can still invite people.' />}
+            checked={mode === 'closed'}
+            value='closed'
+          />
+        </RadioGroup>
+      </FieldsGroup>
+    </SimpleForm>
+  );
+};
+
+export default RegistrationModePicker;