diff --git a/Cargo.toml b/Cargo.toml
index 468ecd6..fdf2d86 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ repository = "https://github.com/ixmilia/dxf-rs"
 readme = "README.md"
 keywords = ["AutoCAD", "CAD", "DXB", "DXF"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 
 [package.metadata.docs.rs]
 targets = []
diff --git a/dxf2json/Cargo.toml b/dxf2json/Cargo.toml
index c85a400..6b3565c 100644
--- a/dxf2json/Cargo.toml
+++ b/dxf2json/Cargo.toml
@@ -2,7 +2,7 @@
 name = "dxf2json"
 version = "0.1.0"
 authors = ["Brett V. Forsgren <brett.forsgren@outlook.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 dxf = { path = "../", features = ["serialize"] }
diff --git a/examples/Cargo.toml b/examples/Cargo.toml
index 02b7536..1bc89c4 100644
--- a/examples/Cargo.toml
+++ b/examples/Cargo.toml
@@ -2,7 +2,7 @@
 name = "dxf-examples"
 version = "0.1.0"
 authors = ["Brett V. Forsgren <brett.forsgren@outlook.com>"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 dxf = { path = "../" }