diff --git a/phases/index.json b/phases/index.json
index bd97b5c..2f65cf4 100644
--- a/phases/index.json
+++ b/phases/index.json
@@ -2,7 +2,8 @@
   "phases": [
     {
       "dir": "solver-bootstrap",
-      "status": "pending"
+      "status": "completed",
+      "completed_at": "2026-07-30T13:01:15+0900"
     },
     {
       "dir": "domain-and-input-skeleton",
@@ -41,4 +42,4 @@
       "status": "pending"
     }
   ]
-}
+}
\ No newline at end of file
diff --git a/phases/solver-bootstrap/index.json b/phases/solver-bootstrap/index.json
index 7b66f78..f0d3ea5 100644
--- a/phases/solver-bootstrap/index.json
+++ b/phases/solver-bootstrap/index.json
@@ -35,5 +35,6 @@
       "completed_at": "2026-07-30T13:01:14+0900"
     }
   ],
-  "created_at": "2026-07-29T23:58:15+0900"
+  "created_at": "2026-07-29T23:58:15+0900",
+  "completed_at": "2026-07-30T13:01:15+0900"
 }
\ No newline at end of file