diff --git a/go.mod b/go.mod
index 14b34de..a2fe604 100644
--- a/go.mod
+++ b/go.mod
@@ -1,13 +1,15 @@
 module git.nemunai.re/nemunaire/idfm-api
 
-go 1.18
+go 1.21
+
+toolchain go1.22.2
 
 require (
 	github.com/gin-gonic/gin v1.9.1
 	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 v1.5.3
+	github.com/twpayne/go-geom v1.5.4
 	golang.org/x/text v0.14.0
 )
 
@@ -32,7 +34,7 @@ require (
 	golang.org/x/arch v0.3.0 // indirect
 	golang.org/x/crypto v0.14.0 // indirect
 	golang.org/x/net v0.17.0 // indirect
-	golang.org/x/sys v0.13.0 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 66c9547..61cd6d3 100644
--- a/go.sum
+++ b/go.sum
@@ -67,6 +67,8 @@ github.com/twpayne/go-geom v1.5.2 h1:LyRfBX2W0LM7XN/bGqX0XxrJ7SZc3XwmxU4aj4kSoxw
 github.com/twpayne/go-geom v1.5.2/go.mod h1:3z6O2sAnGtGCXx4Q+5nPOLCA5e8WI2t3cthdb1P2HH8=
 github.com/twpayne/go-geom v1.5.3 h1:UdH93XzTwpwPiAV38DJ74yg+9/YV9/WCGbKN+NmSvVA=
 github.com/twpayne/go-geom v1.5.3/go.mod h1:scDv/u90MVD6K+/7cA44kQt9fD6M/n+VuLddERxWYR8=
+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/ugorji/go/codec v1.2.11 h1:BMaWp1Bb6fHwEtbplGBGJ498wD+LKlNSl25MjdZY4dU=
 github.com/ugorji/go/codec v1.2.11/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
 golang.org/x/arch v0.0.0-20210923205945-b76863e36670/go.mod h1:5om86z9Hs0C8fWVUuoMHwpExlXzs5Tkyp9hOrfG7pp8=
@@ -86,6 +88,8 @@ golang.org/x/sys v0.8.0 h1:EBmGv8NaZBZTWvrbjNoL6HVt+IVy3QDQpJs7VRIw3tU=
 golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
 golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
+golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.11.0 h1:LAntKIrcmeSKERyiOh0XMV39LXS8IE9UL2yP7+f5ij4=
 golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
@@ -99,6 +103,8 @@ golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8T
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
 google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=