diff --git a/.env.example b/.env.example
index a16a424..e37fb53 100644
--- a/.env.example
+++ b/.env.example
@@ -37,7 +37,7 @@ SESSION_SECRET=replace-with-at-least-32-random-characters
 OIDC_ISSUER_URL=
 OIDC_CLIENT_ID=
 OIDC_CLIENT_SECRET=
-OIDC_REDIRECT_URI=http://localhost:4000/auth/callback
+OIDC_REDIRECT_URI=https://api.altdock.app.amania.jp/auth/callback
 
 MAX_UPLOAD_BYTES=5368709120
 MAX_ARCHIVE_ENTRIES=2048
diff --git a/apps/api/src/config.ts b/apps/api/src/config.ts
index 387c018..0f889a4 100644
--- a/apps/api/src/config.ts
+++ b/apps/api/src/config.ts
@@ -30,7 +30,7 @@ const schema = z.object({
   OIDC_ISSUER_URL: z.string().url().optional(),
   OIDC_CLIENT_ID: z.string().optional(),
   OIDC_CLIENT_SECRET: z.string().optional(),
-  OIDC_REDIRECT_URI: z.string().url().optional(),
+  OIDC_REDIRECT_URI: z.string().url().default("https://api.altdock.app.amania.jp/auth/callback"),
   MAX_UPLOAD_BYTES: numberFromEnv.default(5 * 1024 * 1024 * 1024),
   MAX_ARCHIVE_ENTRIES: numberFromEnv.default(2048),
   MAX_EXPANDED_BYTES: numberFromEnv.default(8 * 1024 * 1024 * 1024),
diff --git a/docker-compose.yml b/docker-compose.yml
index 8effb52..74a5f82 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -80,6 +80,7 @@ services:
       # upload plan URLs. Override for local development.
       PUBLIC_BASE_URL: ${PUBLIC_BASE_URL:-https://api.altdock.app.amania.jp}
       WEB_ORIGIN: ${WEB_ORIGIN:-https://altdock.app.amania.jp}
+      OIDC_REDIRECT_URI: ${OIDC_REDIRECT_URI:-https://api.altdock.app.amania.jp/auth/callback}
     ports:
       - "4000:4000"
     depends_on: