diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0010ef6bab..2662de978b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -71,6 +71,7 @@ and this project adheres to
 - 🐛(frontend) fix dnd conflict with tree and Blocknote #1328
 - 🐛(frontend) fix display bug on homepage #1332
 - 🐛link role update #1287
+- 🔧(keycloak) Fix https required issue in dev mode #1286
 
 ## [3.5.0] - 2025-07-31
 
diff --git a/compose.yml b/compose.yml
index 88e178e353..a774f11e07 100644
--- a/compose.yml
+++ b/compose.yml
@@ -184,22 +184,20 @@ services:
       - env.d/development/kc_postgresql.local
 
   keycloak:
-    image: quay.io/keycloak/keycloak:20.0.1
+    image: quay.io/keycloak/keycloak:26.3
     volumes:
       - ./docker/auth/realm.json:/opt/keycloak/data/import/realm.json
     command:
       - start-dev
       - --features=preview
       - --import-realm
-      - --proxy=edge
-      - --hostname-url=http://localhost:8083
-      - --hostname-admin-url=http://localhost:8083/
+      - --hostname=http://localhost:8083
       - --hostname-strict=false
-      - --hostname-strict-https=false
       - --health-enabled=true
       - --metrics-enabled=true
     healthcheck:
-      test: ["CMD", "curl", "--head", "-fsS", "http://localhost:8080/health/ready"]
+      test: ['CMD-SHELL', 'exec 3<>/dev/tcp/localhost/9000; echo -e "GET /health/live HTTP/1.1\r\nHost: localhost\r\nConnection: close\r\n\r\n" >&3; grep "HTTP/1.1 200 OK" <&3']
+      start_period: 5s
       interval: 1s
       timeout: 2s
       retries: 300
diff --git a/docker/auth/realm.json b/docker/auth/realm.json
index db5f1be021..c5f265a46a 100644
--- a/docker/auth/realm.json
+++ b/docker/auth/realm.json
@@ -26,7 +26,7 @@
   "oauth2DeviceCodeLifespan": 600,
   "oauth2DevicePollingInterval": 5,
   "enabled": true,
-  "sslRequired": "external",
+  "sslRequired": "none",
   "registrationAllowed": true,
   "registrationEmailAsUsername": false,
   "rememberMe": true,
@@ -2270,7 +2270,7 @@
     "cibaInterval": "5",
     "realmReusableOtpCode": "false"
   },
-  "keycloakVersion": "20.0.1",
+  "keycloakVersion": "26.3.2",
   "userManagedAccessAllowed": false,
   "clientProfiles": {
     "profiles": []
diff --git a/src/frontend/apps/e2e/__tests__/app-impress/home.spec.ts b/src/frontend/apps/e2e/__tests__/app-impress/home.spec.ts
index 28f479f486..bdc4c9ed6f 100644
--- a/src/frontend/apps/e2e/__tests__/app-impress/home.spec.ts
+++ b/src/frontend/apps/e2e/__tests__/app-impress/home.spec.ts
@@ -131,7 +131,7 @@ test.describe('Home page', () => {
 
     // Keyclock login page
     await expect(
-      page.locator('.login-pf-page-header').getByText('impress'),
+      page.locator('.login-pf #kc-header-wrapper').getByText('impress'),
     ).toBeVisible();
   });
 });
diff --git a/src/frontend/apps/e2e/__tests__/app-impress/utils-common.ts b/src/frontend/apps/e2e/__tests__/app-impress/utils-common.ts
index 4d5a214b31..25cb5b353f 100644
--- a/src/frontend/apps/e2e/__tests__/app-impress/utils-common.ts
+++ b/src/frontend/apps/e2e/__tests__/app-impress/utils-common.ts
@@ -56,7 +56,7 @@ export const keyCloakSignIn = async (
   const password = `password-e2e-${browserName}`;
 
   await expect(
-    page.locator('.login-pf-page-header').getByText('impress'),
+    page.locator('.login-pf #kc-header-wrapper').getByText('impress'),
   ).toBeVisible();
 
   if (await page.getByLabel('Restart login').isVisible()) {
@@ -65,7 +65,7 @@ export const keyCloakSignIn = async (
 
   await page.getByRole('textbox', { name: 'username' }).fill(login);
   await page.getByRole('textbox', { name: 'password' }).fill(password);
-  await page.click('input[type="submit"]', { force: true });
+  await page.click('button[type="submit"]', { force: true });
 };
 
 export const randomName = (name: string, browserName: string, length: number) =>