diff --git a/Cargo.toml b/Cargo.toml
index 1da4ff9..0797b68 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,4 +1,5 @@
 [workspace]
+resolver = "2"
 
 members = [
   "fractal-lib", "fractal-piston", "fractal-wasm"
diff --git a/fractal-lib/Cargo.toml b/fractal-lib/Cargo.toml
index 0c1e6e2..92b734d 100644
--- a/fractal-lib/Cargo.toml
+++ b/fractal-lib/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.1"
 authors = ["William (B.J.) Snow Orvis <aetherknight@gmail.com>"]
 license = "Apache-2.0"
 description = "Fractal library"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 log = "^0.4"
diff --git a/fractal-piston/Cargo.toml b/fractal-piston/Cargo.toml
index 07203ed..d03d7d9 100644
--- a/fractal-piston/Cargo.toml
+++ b/fractal-piston/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.1"
 authors = ["William (B.J.) Snow Orvis <aetherknight@gmail.com>"]
 license = "Apache-2.0"
 description = "Fractal rendering program"
-edition = "2018"
+edition = "2021"
 
 [[bin]]
 name = "fractal-piston"
diff --git a/fractal-wasm/Cargo.toml b/fractal-wasm/Cargo.toml
index c81d0ca..fe005fc 100644
--- a/fractal-wasm/Cargo.toml
+++ b/fractal-wasm/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.0.1"
 authors = ["William (B.J.) Snow Orvis <aetherknight@gmail.com>"]
 license = "Apache-2.0"
 description = "Fractal rendering program, targeting webassembly"
-edition = "2018"
+edition = "2021"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/rustfmt.toml b/rustfmt.toml
index 9f2b433..c6ea9b0 100644
--- a/rustfmt.toml
+++ b/rustfmt.toml
@@ -1,4 +1,4 @@
-edition = "2018"
+edition = "2021"
 comment_width = 100
 wrap_comments = true
 newline_style = "Unix"