diff --git a/.mise.toml b/.mise.toml
index 5c79e5503..bcb0c3b27 100644
--- a/.mise.toml
+++ b/.mise.toml
@@ -1,3 +1,3 @@
 [tools]
-go = "1.27.2"
+go = "1.27.3"
 goreleaser = "2.15.4"
diff --git a/go.mod b/go.mod
index 06f443ed7..0a4cb588c 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,7 @@ module github.com/basecamp/hey-cli
 
 go 1.27.0
 
-toolchain go1.27.2
+toolchain go1.27.3
 
 require (
 	charm.land/bubbles/v2 v2.2.1
diff --git a/tests/smoke/go.mod b/tests/smoke/go.mod
index 864a14f05..d4c1237e8 100644
--- a/tests/smoke/go.mod
+++ b/tests/smoke/go.mod
@@ -2,7 +2,7 @@ module github.com/basecamp/hey-cli/tests/smoke
 
 go 1.27.0
 
-toolchain go1.27.2
+toolchain go1.27.3
 
 require (
 	github.com/chromedp/cdproto v0.0.0-20250803210736-d308e07a266d