diff --git a/go/go.mod b/go/go.mod
index 015e041..a29da1c 100644
--- a/go/go.mod
+++ b/go/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/albertyw/localtimezone/v3 v3.1.3
 	github.com/bradfitz/latlong v0.0.0-20170410180902-f3db6d0dff40
 	github.com/loov/hrtime v1.0.3
-	github.com/ringsaturn/go-cities.json v0.4.0
+	github.com/ringsaturn/go-cities.json v0.5.0
 	github.com/ringsaturn/tzf v0.14.0
 	github.com/zsefvlol/timezonemapper v1.0.0
 )
diff --git a/go/go.sum b/go/go.sum
index dfefbcf..81ce82c 100644
--- a/go/go.sum
+++ b/go/go.sum
@@ -42,8 +42,8 @@ github.com/paulmach/protoscan v0.2.1/go.mod h1:SpcSwydNLrxUGSDvXvO0P7g7AuhJ7lcKf
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/ringsaturn/go-cities.json v0.4.0 h1:7w47Wy9Xq4sMrPKzhk6p1ney8qadnRtfAa9qzWtvsYM=
-github.com/ringsaturn/go-cities.json v0.4.0/go.mod h1:qpTYJsvNi40oTJs0WEdRdNAbWcLBWSL7oRHUxMrF4g8=
+github.com/ringsaturn/go-cities.json v0.5.0 h1:VpE8QuzcW0nv9WBW9ZVLiGeqCVYmQX+13Vy8ckpEhqc=
+github.com/ringsaturn/go-cities.json v0.5.0/go.mod h1:qpTYJsvNi40oTJs0WEdRdNAbWcLBWSL7oRHUxMrF4g8=
 github.com/ringsaturn/tzf v0.14.0 h1:1PelDZ8N1UUmDPdVY7/Fnh2P61OOPoLNYKkuDrc8kPI=
 github.com/ringsaturn/tzf v0.14.0/go.mod h1:ywbnZmJjMzrRTp+Ee8NZ8tV1VcEKGgpm8tXqMmCjD9c=
 github.com/ringsaturn/tzf-rel v0.0.2023-b h1:27Kt3ewlXJ/nkYFedYWmKbj7CUWzG0UxFYXQAjzPgBE=