diff --git a/go.mod b/go.mod
index a35e1c5..a33b79b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/dogmatiq/dapper
 
-go 1.19
+go 1.21
 
 require google.golang.org/protobuf v1.32.0