diff --git a/go.mod b/go.mod
index 1a58853..7435211 100644
--- a/go.mod
+++ b/go.mod
@@ -1,15 +1,15 @@
 module git.nemunai.re/nemunaire/idfm-api
 
-go 1.21
+go 1.22
 
-toolchain go1.22.4
+toolchain go1.23.5
 
 require (
 	github.com/gin-gonic/gin v1.10.0
 	github.com/mb0/wkt v0.0.0-20170420051526-a30afd545ee1
 	github.com/paulmach/go.geojson v1.5.0
 	github.com/pkg/errors v0.9.1
-	github.com/twpayne/go-geom v1.5.7
+	github.com/twpayne/go-geom v1.6.0
 	golang.org/x/text v0.21.0
 )
 
diff --git a/go.sum b/go.sum
index a66ae45..5c303b2 100644
--- a/go.sum
+++ b/go.sum
@@ -97,6 +97,8 @@ github.com/twpayne/go-geom v1.5.4 h1:b8fiZd0SsEmQEeUdz2atT6KggF1KHiaZIi3DGi5p+sI
 github.com/twpayne/go-geom v1.5.4/go.mod h1:Hw8RszQ2/d9Y/KfOm9CvUJo78BOoIA5g0e4P7JCVKvo=
 github.com/twpayne/go-geom v1.5.7 h1:7fdceDUr03/MP7rAKOaTV6x9njMiQdxB/D0PDzMTCDc=
 github.com/twpayne/go-geom v1.5.7/go.mod h1:y4fTAQtLedXW8eG2Yo4tYrIGN1yIwwKkmA+K3iSHKBA=
+github.com/twpayne/go-geom v1.6.0 h1:WPOJLCdd8OdcnHvKQepLKwOZrn5BzVlNxtQB59IDHRE=
+github.com/twpayne/go-geom v1.6.0/go.mod h1:Kr+Nly6BswFsKM5sd31YaoWS5PeDDH2NftJTK7Gd028=
 github.com/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU=
 github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 github.com/ugorji/go/codec v1.2.12 h1:9LC83zGrHhuUA9l16C9AHXAqEV/2wBQ4nkvumAE65EE=