diff --git a/go.mod b/go.mod
index c8d4b97..0421341 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/retailnext/sentry-sendmail
 
 go 1.21
 
-toolchain go1.23.2
+toolchain go1.23.3
 
 require (
 	github.com/BurntSushi/toml v1.4.0