diff --git a/go.mod b/go.mod
index 009da39..4f23abf 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/mazrean/isucon-go-tools/v2
 go 1.22.6
 
 require (
-	connectrpc.com/connect v1.17.0
+	connectrpc.com/connect v1.18.1
 	github.com/gostaticanalysis/analysisutil v0.7.1
 	github.com/grafana/pyroscope v1.11.0
 	github.com/grafana/pyroscope-go v1.2.0
diff --git a/go.sum b/go.sum
index f03d264..5fd46f3 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-connectrpc.com/connect v1.17.0 h1:W0ZqMhtVzn9Zhn2yATuUokDLO5N+gIuBWMOnsQrfmZk=
-connectrpc.com/connect v1.17.0/go.mod h1:0292hj1rnx8oFrStN7cB4jjVBeqs+Yx5yDIC2prWDO8=
+connectrpc.com/connect v1.18.1 h1:PAg7CjSAGvscaf6YZKUefjoih5Z/qYkyaTrBW8xvYPw=
+connectrpc.com/connect v1.18.1/go.mod h1:0292hj1rnx8oFrStN7cB4jjVBeqs+Yx5yDIC2prWDO8=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 github.com/andybalholm/brotli v1.1.1 h1:PR2pgnyFznKEugtsUo0xLdDop5SKXd5Qf5ysW+7XdTA=