diff --git a/go.mod b/go.mod
index b4331b023..1fb7288ba 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module go.uber.org/cadence
 
-go 1.21
+go 1.23
 
 require (
 	github.com/apache/thrift v0.16.0
diff --git a/internal/tools/go.mod b/internal/tools/go.mod
index c2023ab86..696de1b99 100644
--- a/internal/tools/go.mod
+++ b/internal/tools/go.mod
@@ -1,6 +1,6 @@
 module go.uber.org/cadence/internal/tools
 
-go 1.21
+go 1.23
 
 require (
 	github.com/kisielk/errcheck v1.6.3