diff --git a/Cargo.toml b/Cargo.toml
index 77040e2..7e70a51 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/codespell-dict/Cargo.toml b/crates/codespell-dict/Cargo.toml
index f203774..157b649 100644
--- a/crates/codespell-dict/Cargo.toml
+++ b/crates/codespell-dict/Cargo.toml
@@ -8,7 +8,7 @@ readme = "README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
 license = "CC-BY-SA-3.0"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 include = [
diff --git a/crates/codespell-dict/codegen/Cargo.toml b/crates/codespell-dict/codegen/Cargo.toml
index 991ae51..5cdc2c9 100644
--- a/crates/codespell-dict/codegen/Cargo.toml
+++ b/crates/codespell-dict/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/dictgen/Cargo.toml b/crates/dictgen/Cargo.toml
index d90307c..c2060c0 100644
--- a/crates/dictgen/Cargo.toml
+++ b/crates/dictgen/Cargo.toml
@@ -6,7 +6,7 @@ repository = "https://github.com/crate-ci/typos"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling", "no_std"]
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/misspell-dict/Cargo.toml b/crates/misspell-dict/Cargo.toml
index bb21489..556863f 100644
--- a/crates/misspell-dict/Cargo.toml
+++ b/crates/misspell-dict/Cargo.toml
@@ -8,7 +8,7 @@ readme = "README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 include = [
diff --git a/crates/misspell-dict/codegen/Cargo.toml b/crates/misspell-dict/codegen/Cargo.toml
index 81ea989..7d8b976 100644
--- a/crates/misspell-dict/codegen/Cargo.toml
+++ b/crates/misspell-dict/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/typos-dict/Cargo.toml b/crates/typos-dict/Cargo.toml
index 6220694..0a02deb 100644
--- a/crates/typos-dict/Cargo.toml
+++ b/crates/typos-dict/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/typos-dict/codegen/Cargo.toml b/crates/typos-dict/codegen/Cargo.toml
index 14a1eb4..3b8d630 100644
--- a/crates/typos-dict/codegen/Cargo.toml
+++ b/crates/typos-dict/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/typos-dict/verify/Cargo.toml b/crates/typos-dict/verify/Cargo.toml
index 383bf4f..2beef62 100644
--- a/crates/typos-dict/verify/Cargo.toml
+++ b/crates/typos-dict/verify/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/typos-vars/Cargo.toml b/crates/typos-vars/Cargo.toml
index d15083a..88c3cc5 100644
--- a/crates/typos-vars/Cargo.toml
+++ b/crates/typos-vars/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/typos-vars/codegen/Cargo.toml b/crates/typos-vars/codegen/Cargo.toml
index f6361a5..f0ac1c7 100644
--- a/crates/typos-vars/codegen/Cargo.toml
+++ b/crates/typos-vars/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/typos/Cargo.toml b/crates/typos/Cargo.toml
index 383ee55..bbb0f45 100644
--- a/crates/typos/Cargo.toml
+++ b/crates/typos/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/varcon-core/Cargo.toml b/crates/varcon-core/Cargo.toml
index 414b64c..ea0127e 100644
--- a/crates/varcon-core/Cargo.toml
+++ b/crates/varcon-core/Cargo.toml
@@ -7,7 +7,7 @@ license = "MIT OR Apache-2.0"
 repository = "https://github.com/crate-ci/typos"
 readme = "../../README.md"
 categories = ["text-processing"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/varcon/Cargo.toml b/crates/varcon/Cargo.toml
index 06c8746..1e40d74 100644
--- a/crates/varcon/Cargo.toml
+++ b/crates/varcon/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 include = [
   "src/**/*",
diff --git a/crates/varcon/codegen/Cargo.toml b/crates/varcon/codegen/Cargo.toml
index f07ff0e..8736ff4 100644
--- a/crates/varcon/codegen/Cargo.toml
+++ b/crates/varcon/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../../../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 
diff --git a/crates/wikipedia-dict/Cargo.toml b/crates/wikipedia-dict/Cargo.toml
index 84b7e34..2541066 100644
--- a/crates/wikipedia-dict/Cargo.toml
+++ b/crates/wikipedia-dict/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "README.md"
 categories = ["development-tools", "text-processing"]
 keywords = ["development", "spelling"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false
 include = [
diff --git a/crates/wikipedia-dict/codegen/Cargo.toml b/crates/wikipedia-dict/codegen/Cargo.toml
index 98be7b6..3a676d9 100644
--- a/crates/wikipedia-dict/codegen/Cargo.toml
+++ b/crates/wikipedia-dict/codegen/Cargo.toml
@@ -7,7 +7,7 @@ repository = "https://github.com/crate-ci/typos"
 readme = "../README.md"
 categories = ["text-processing"]
 license = "MIT"
-edition = "2018"
+edition = "2021"
 rust-version = "1.59.0"  # MSRV
 publish = false