diff --git a/src/frontend/Dockerfile b/src/frontend/Dockerfile
index de961185..c10ce231 100644
--- a/src/frontend/Dockerfile
+++ b/src/frontend/Dockerfile
@@ -61,9 +61,6 @@ FROM impress AS impress-builder
 
 WORKDIR /home/frontend/apps/impress
 
-ARG FRONTEND_THEME
-ENV NEXT_PUBLIC_THEME=${FRONTEND_THEME}
-
 ARG Y_PROVIDER_URL
 ENV NEXT_PUBLIC_Y_PROVIDER_URL=${Y_PROVIDER_URL}
 
diff --git a/src/frontend/apps/e2e/__tests__/app-impress/config.spec.ts b/src/frontend/apps/e2e/__tests__/app-impress/config.spec.ts
index 3a6f8c94..c0a2c4c4 100644
--- a/src/frontend/apps/e2e/__tests__/app-impress/config.spec.ts
+++ b/src/frontend/apps/e2e/__tests__/app-impress/config.spec.ts
@@ -56,4 +56,25 @@ test.describe('Config', () => {
 
     expect((await consoleMessage).text()).toContain(invalidMsg);
   });
+
+  test('it checks that theme is configured from config endpoint', async ({
+    page,
+  }) => {
+    const responsePromise = page.waitForResponse(
+      (response) =>
+        response.url().includes('/config/') && response.status() === 200,
+    );
+
+    await page.goto('/');
+
+    const response = await responsePromise;
+    expect(response.ok()).toBeTruthy();
+
+    const jsonResponse = await response.json();
+    expect(jsonResponse.FRONTEND_THEME).toStrictEqual('dsfr');
+
+    const footer = page.locator('footer').first();
+    // alt 'Gouvernement Logo' comes from the theme
+    await expect(footer.getByAltText('Gouvernement Logo')).toBeVisible();
+  });
 });
diff --git a/src/frontend/apps/impress/.env b/src/frontend/apps/impress/.env
index 393b6b3c..051e4595 100644
--- a/src/frontend/apps/impress/.env
+++ b/src/frontend/apps/impress/.env
@@ -1,5 +1,4 @@
 NEXT_PUBLIC_API_ORIGIN=
 NEXT_PUBLIC_Y_PROVIDER_URL=
 NEXT_PUBLIC_MEDIA_URL=
-NEXT_PUBLIC_THEME=dsfr
 NEXT_PUBLIC_SW_DEACTIVATED=
diff --git a/src/frontend/apps/impress/.env.test b/src/frontend/apps/impress/.env.test
index 6d5094f8..9a4d5142 100644
--- a/src/frontend/apps/impress/.env.test
+++ b/src/frontend/apps/impress/.env.test
@@ -1,2 +1 @@
 NEXT_PUBLIC_API_ORIGIN=http://test.jest
-NEXT_PUBLIC_THEME=test-theme
diff --git a/src/frontend/apps/impress/src/core/config/ConfigProvider.tsx b/src/frontend/apps/impress/src/core/config/ConfigProvider.tsx
index faa46de2..217866e9 100644
--- a/src/frontend/apps/impress/src/core/config/ConfigProvider.tsx
+++ b/src/frontend/apps/impress/src/core/config/ConfigProvider.tsx
@@ -1,5 +1,8 @@
+import { Loader } from '@openfun/cunningham-react';
 import { PropsWithChildren, useEffect } from 'react';
 
+import { Box } from '@/components';
+import { useCunninghamTheme } from '@/cunningham';
 import { useSentryStore } from '@/stores/useSentryStore';
 
 import { useConfig } from './api/useConfig';
@@ -7,6 +10,7 @@ import { useConfig } from './api/useConfig';
 export const ConfigProvider = ({ children }: PropsWithChildren) => {
   const { data: conf } = useConfig();
   const { setSentry } = useSentryStore();
+  const { setTheme } = useCunninghamTheme();
 
   useEffect(() => {
     if (!conf?.SENTRY_DSN) {
@@ -16,5 +20,21 @@ export const ConfigProvider = ({ children }: PropsWithChildren) => {
     setSentry(conf.SENTRY_DSN, conf.ENVIRONMENT);
   }, [conf?.SENTRY_DSN, conf?.ENVIRONMENT, setSentry]);
 
+  useEffect(() => {
+    if (!conf?.FRONTEND_THEME) {
+      return;
+    }
+
+    setTheme(conf.FRONTEND_THEME);
+  }, [conf?.FRONTEND_THEME, setTheme]);
+
+  if (!conf) {
+    return (
+      <Box $height="100vh" $width="100vw" $align="center" $justify="center">
+        <Loader />
+      </Box>
+    );
+  }
+
   return children;
 };
diff --git a/src/frontend/apps/impress/src/core/config/api/useConfig.tsx b/src/frontend/apps/impress/src/core/config/api/useConfig.tsx
index f4b4ef7a..8717c56b 100644
--- a/src/frontend/apps/impress/src/core/config/api/useConfig.tsx
+++ b/src/frontend/apps/impress/src/core/config/api/useConfig.tsx
@@ -1,12 +1,13 @@
 import { useQuery } from '@tanstack/react-query';
 
 import { APIError, errorCauses, fetchAPI } from '@/api';
+import { Theme } from '@/cunningham/';
 
 interface ConfigResponse {
   SENTRY_DSN: string;
   COLLABORATION_SERVER_URL: string;
   ENVIRONMENT: string;
-  FRONTEND_THEME: string;
+  FRONTEND_THEME: Theme;
   LANGUAGES: [string, string][];
   LANGUAGE_CODE: string;
   MEDIA_BASE_URL: string;
diff --git a/src/frontend/apps/impress/src/cunningham/__tests__/useCunninghamTheme.spec.tsx b/src/frontend/apps/impress/src/cunningham/__tests__/useCunninghamTheme.spec.tsx
index f6a32fff..69f1dff2 100644
--- a/src/frontend/apps/impress/src/cunningham/__tests__/useCunninghamTheme.spec.tsx
+++ b/src/frontend/apps/impress/src/cunningham/__tests__/useCunninghamTheme.spec.tsx
@@ -1,12 +1,6 @@
-import useCunninghamTheme from '../useCunninghamTheme';
+import { useCunninghamTheme } from '../useCunninghamTheme';
 
 describe('<useCunninghamTheme />', () => {
-  it('has the theme from NEXT_PUBLIC_THEME', () => {
-    const { theme } = useCunninghamTheme.getState();
-
-    expect(theme).toBe('test-theme');
-  });
-
   it('has the dsfr logo correctly set', () => {
     const { themeTokens, setTheme } = useCunninghamTheme.getState();
     setTheme('dsfr');
diff --git a/src/frontend/apps/impress/src/cunningham/index.ts b/src/frontend/apps/impress/src/cunningham/index.ts
index e955768b..1e5bd52d 100644
--- a/src/frontend/apps/impress/src/cunningham/index.ts
+++ b/src/frontend/apps/impress/src/cunningham/index.ts
@@ -1,4 +1,2 @@
-import { tokens } from './cunningham-tokens';
-import useCunninghamTheme from './useCunninghamTheme';
-
-export { tokens, useCunninghamTheme };
+export * from './cunningham-tokens';
+export * from './useCunninghamTheme';
diff --git a/src/frontend/apps/impress/src/cunningham/useCunninghamTheme.tsx b/src/frontend/apps/impress/src/cunningham/useCunninghamTheme.tsx
index a951a830..26ea5975 100644
--- a/src/frontend/apps/impress/src/cunningham/useCunninghamTheme.tsx
+++ b/src/frontend/apps/impress/src/cunningham/useCunninghamTheme.tsx
@@ -6,22 +6,25 @@ import { tokens } from './cunningham-tokens';
 type Tokens = typeof tokens.themes.default & Partial<typeof tokens.themes.dsfr>;
 type ColorsTokens = Tokens['theme']['colors'];
 type ComponentTokens = Tokens['components'];
-type Theme = 'default' | 'dsfr';
+export type Theme = keyof typeof tokens.themes;
 
 interface AuthStore {
-  theme: Theme;
+  theme: string;
   setTheme: (theme: Theme) => void;
   themeTokens: () => Partial<Tokens['theme']>;
   colorsTokens: () => Partial<ColorsTokens>;
   componentTokens: () => ComponentTokens;
 }
 
-const useCunninghamTheme = create<AuthStore>((set, get) => {
+export const useCunninghamTheme = create<AuthStore>((set, get) => {
   const currentTheme = () =>
-    merge(tokens.themes['default'], tokens.themes[get().theme]) as Tokens;
+    merge(
+      tokens.themes['default'],
+      tokens.themes[get().theme as keyof typeof tokens.themes],
+    ) as Tokens;
 
   return {
-    theme: (process.env.NEXT_PUBLIC_THEME as Theme) || 'dsfr',
+    theme: 'dsfr',
     themeTokens: () => currentTheme().theme,
     colorsTokens: () => currentTheme().theme.colors,
     componentTokens: () => currentTheme().components,
@@ -30,5 +33,3 @@ const useCunninghamTheme = create<AuthStore>((set, get) => {
     },
   };
 });
-
-export default useCunninghamTheme;
diff --git a/src/frontend/apps/impress/src/custom-next.d.ts b/src/frontend/apps/impress/src/custom-next.d.ts
index ff3906c6..ec8d7d06 100644
--- a/src/frontend/apps/impress/src/custom-next.d.ts
+++ b/src/frontend/apps/impress/src/custom-next.d.ts
@@ -23,6 +23,5 @@ namespace NodeJS {
     NEXT_PUBLIC_MEDIA_URL?: string;
     NEXT_PUBLIC_Y_PROVIDER_URL?: string;
     NEXT_PUBLIC_SW_DEACTIVATED?: string;
-    NEXT_PUBLIC_THEME?: string;
   }
 }
diff --git a/src/frontend/apps/impress/src/features/docs/doc-management/components/ModalRemoveDoc.tsx b/src/frontend/apps/impress/src/features/docs/doc-management/components/ModalRemoveDoc.tsx
index f2600b3c..6b341b70 100644
--- a/src/frontend/apps/impress/src/features/docs/doc-management/components/ModalRemoveDoc.tsx
+++ b/src/frontend/apps/impress/src/features/docs/doc-management/components/ModalRemoveDoc.tsx
@@ -10,7 +10,7 @@ import { t } from 'i18next';
 import { useRouter } from 'next/router';
 
 import { Box, Text, TextErrors } from '@/components';
-import useCunninghamTheme from '@/cunningham/useCunninghamTheme';
+import { useCunninghamTheme } from '@/cunningham/';
 
 import { useRemoveDoc } from '../api/useRemoveDoc';
 import IconDoc from '../assets/icon-doc.svg';