diff --git a/.github/workflows/terraform.yml b/.github/workflows/terraform.yml
index a2bef7c..a72f2ac 100644
--- a/.github/workflows/terraform.yml
+++ b/.github/workflows/terraform.yml
@@ -92,7 +92,7 @@ jobs:
 
       - name: Backup tfstate to artifact
         if: github.ref == 'refs/heads/production' && github.event_name == 'push'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: terraform.tfstate
           path: terraform.tfstate
diff --git a/README.md b/README.md
index bf4befa..cf58119 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,9 @@ Manage github membership by Terraform
 
 ### Sample flow
 
-1. fork this repo.
-1. edit members.tf and team-ictsc6.tf like [this](https://github.com/ictsc/ictsc-github-member/pull/5).
-1. create pull req.
+1. clone this repo.
+2. Cut branches and edit team-ictsc20xx.tf, github.tf and team-admin.tf like [this](https://github.com/ictsc/ictsc-github-member/pull/230).
+3. create pull req to master.
+4. marge pull req.
+5. create pull req to production.
+6. marge pull req.
diff --git a/github.tf b/github.tf
index 56de4f0..71669c2 100644
--- a/github.tf
+++ b/github.tf
@@ -14,6 +14,7 @@ provider "github" {
 // add all member to github org
 resource "github_membership" "member" {
   for_each = toset(concat(
+    local.ictsc2025_members,
     local.ictsc2024_members,
     local.ictsc2023_members,
     local.ictsc2022_members,
@@ -36,6 +37,7 @@ resource "github_membership" "member" {
 resource "github_team" "team" {
   for_each = toset([
     "Admins",
+    "ictsc2025",
     "ictsc2024",
     "ictsc2023",
     "ictsc2022",
@@ -59,6 +61,7 @@ resource "github_team" "team" {
 resource "github_team_members" "team_member" {
   for_each = {
     "Admins"    = local.admin_members,
+    "ictsc2025" = local.ictsc2025_members,
     "ictsc2024" = local.ictsc2024_members,
     "ictsc2023" = local.ictsc2023_members,
     "ictsc2022" = local.ictsc2022_members,
diff --git a/team-admin.tf b/team-admin.tf
index 066e5d1..b2b7efb 100644
--- a/team-admin.tf
+++ b/team-admin.tf
@@ -14,9 +14,14 @@ locals {
     "onokatio",
     "Explosive6363",
     "x86taka",
-    "Nishinoyama",
+    "nishinoyama",
     "Crow314",
     "logica0419",
     "mu-ruU1",
+    "tosuke",
+    "Dodai-Dodai",
+    "private-yusuke",
+    "Art-Atlas",
+    "Fuuma0000",
   ]
 }
diff --git a/team-ictsc2022.tf b/team-ictsc2022.tf
index f76787e..e2ba654 100644
--- a/team-ictsc2022.tf
+++ b/team-ictsc2022.tf
@@ -8,7 +8,7 @@ locals {
     "K-shir0",
     "Explosive6363",
     "chaya2z",
-    "Nishinoyama",
+    "nishinoyama",
     "Crow314",
     "syuuya-nakatomi",
     "logica0419",
diff --git a/team-ictsc2023.tf b/team-ictsc2023.tf
index 85c6074..971c1f3 100644
--- a/team-ictsc2023.tf
+++ b/team-ictsc2023.tf
@@ -2,7 +2,7 @@ locals {
   ictsc2023_members = [
     "onokatio",
     "x86taka",
-    "Nishinoyama",
+    "nishinoyama",
     "Crow314",
     "syuuya-nakatomi",
     "logica0419",
diff --git a/team-ictsc2024.tf b/team-ictsc2024.tf
index bdb24c2..086c2b3 100644
--- a/team-ictsc2024.tf
+++ b/team-ictsc2024.tf
@@ -2,7 +2,7 @@ locals {
   ictsc2024_members = [
     "onokatio",
     "x86taka",
-    "Nishinoyama",
+    "nishinoyama",
     "Crow314",
     "syuuya-nakatomi",
     "logica0419",
diff --git a/team-ictsc2025.tf b/team-ictsc2025.tf
new file mode 100644
index 0000000..101e118
--- /dev/null
+++ b/team-ictsc2025.tf
@@ -0,0 +1,26 @@
+locals {
+  ictsc2025_members = [
+    "red-3ya",
+    "bqc0n",
+    "SouJimmy",
+    "ishisora",
+    "private-yusuke",
+    "39Hane",
+    "oshamashama",
+    "210on",
+    "takonomura",
+    "Crow314",
+    "hitto-hub",
+    "Art-Atlas",
+    "syuuya-nakatomi",
+    "logica0419",
+    "nishinoyama",
+    "nagayon-935",
+    "tosuke",
+    "k-84mo10",
+    "Fuuma0000",
+    "rk76feWF",
+    "toma1128",
+    "Dodai-Dodai",
+  ]
+}