diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ce4d13e..3a0ecdb4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -57,7 +57,7 @@ jobs:
       - name: Setup Go
         uses: actions/setup-go@v5
         with:
-          go-version: "1.24"
+          go-version: "1.26.1"
           cache-dependency-path: server/go.sum
 
       - name: Build
diff --git a/CLAUDE.md b/CLAUDE.md
index 609ed885..355eed49 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -149,7 +149,7 @@ make db-down          # Stop shared PostgreSQL
 
 ### CI Requirements
 
-CI runs on Node 22 and Go 1.24 with a `pgvector/pgvector:pg17` PostgreSQL service. See `.github/workflows/ci.yml`.
+CI runs on Node 22 and Go 1.26.1 with a `pgvector/pgvector:pg17` PostgreSQL service. See `.github/workflows/ci.yml`.
 
 ### Worktree Support