diff --git a/go.mod b/go.mod
index c065125e5..fcaf40e09 100644
--- a/go.mod
+++ b/go.mod
@@ -1,10 +1,12 @@
 module github.com/dev-hato/hato-atama
 
-go 1.20
+go 1.21
+
+toolchain go1.21.0
 
 require (
 	cloud.google.com/go/datastore v1.14.0
-	github.com/cosmtrek/air v1.44.0
+	github.com/cosmtrek/air v1.45.0
 	github.com/go-playground/validator/v10 v10.15.2
 	github.com/labstack/echo/v4 v4.11.1
 	golang.org/x/tools v0.6.0
diff --git a/go.sum b/go.sum
index 5fa8d9eb0..e8f42d2f9 100644
--- a/go.sum
+++ b/go.sum
@@ -68,6 +68,7 @@ github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWH
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cosmtrek/air v1.44.0 h1:8qq2Y6Usjpb5bq5/AMMIEdtxmXwGMazcCSsLHw17+3g=
 github.com/cosmtrek/air v1.44.0/go.mod h1:KpAB0/hED+9nxpEG9jBLrykdDW5Gbhy8T8bfl/sZzFw=
+github.com/cosmtrek/air v1.45.0/go.mod h1:yOz9vy7edZ75KRN9+Ofqwm3OU0wuv4Csc+ikMeZxxS8=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
 github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=