diff --git a/scripts/tzgen/main.go b/scripts/tzgen/main.go
index 8a09e8b..51b2ba5 100644
--- a/scripts/tzgen/main.go
+++ b/scripts/tzgen/main.go
@@ -16,7 +16,7 @@ import (
 	"strings"
 )
 
-const tzdataURL = "https://data.iana.org/time-zones/releases/tzdata2023c.tar.gz"
+const tzdataURL = "https://data.iana.org/time-zones/releases/tzdata2025b.tar.gz"
 
 func main() {
 	if err := run(context.Background()); err != nil {
diff --git a/tz/america_coyhaique.go b/tz/america_coyhaique.go
new file mode 100644
index 0000000..062cee9
--- /dev/null
+++ b/tz/america_coyhaique.go
@@ -0,0 +1,24 @@
+// Code generated by tzgen. DO NOT EDIT.
+
+package tz
+
+import "time"
+import "sync"
+
+var (
+	onceAmericaCoyhaiqueLocation  sync.Once
+	cacheAmericaCoyhaiqueLocation *time.Location
+)
+
+type AmericaCoyhaique struct{}
+
+func (AmericaCoyhaique) Location() *time.Location {
+	onceAmericaCoyhaiqueLocation.Do(func() {
+		loc, err := time.LoadLocation("America/Coyhaique")
+		if err != nil {
+			panic(err)
+		}
+		cacheAmericaCoyhaiqueLocation = loc
+	})
+	return cacheAmericaCoyhaiqueLocation
+}