diff --git a/go.mod b/go.mod
index 07cfc704..eafb39b8 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/gmlewis/go3d v0.0.4
 	github.com/gmlewis/ponoko2d v0.0.0-20190404133045-d77d370bec9a
 	github.com/yofu/dxf v0.0.0-20190710012328-5a6d1e83f16c
-	google.golang.org/protobuf v1.33.0
+	google.golang.org/protobuf v1.34.1
 )
 
 require (
diff --git a/go.sum b/go.sum
index ac3d2164..0915ca60 100644
--- a/go.sum
+++ b/go.sum
@@ -13,6 +13,6 @@ github.com/yofu/dxf v0.0.0-20190710012328-5a6d1e83f16c h1:qgsxLgTXCVH8Dxar36HI5a
 github.com/yofu/dxf v0.0.0-20190710012328-5a6d1e83f16c/go.mod h1:gnT4GQzgKW8+TLI0xheUgdmNV4dsAN0WJUVnztRZkfI=
 golang.org/x/image v0.15.0 h1:kOELfmgrmJlw4Cdb7g/QGuB3CvDrXbqEIww/pNtNBm8=
 golang.org/x/image v0.15.0/go.mod h1:HUYqC05R2ZcZ3ejNQsIHQDQiwWM4JBqmm6MKANTp4LE=
-google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
-google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
+google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 honnef.co/go/tools v0.0.0-20190404041852-d36bf9040906/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=