diff --git a/examples/application/Cargo.toml b/examples/application/Cargo.toml
index dc0cbbc..1d2e84f 100644
--- a/examples/application/Cargo.toml
+++ b/examples/application/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "application"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 workspace = "../"
 
 [dependencies]
diff --git a/examples/async-handlers/Cargo.toml b/examples/async-handlers/Cargo.toml
index 929b4fb..2196a5b 100644
--- a/examples/async-handlers/Cargo.toml
+++ b/examples/async-handlers/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "async-handlers"
 version = "2.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/databases/Cargo.toml b/examples/databases/Cargo.toml
index b17a4aa..8269c57 100644
--- a/examples/databases/Cargo.toml
+++ b/examples/databases/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "databases"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/easy-form-handling/Cargo.toml b/examples/easy-form-handling/Cargo.toml
index ddf4155..761530a 100644
--- a/examples/easy-form-handling/Cargo.toml
+++ b/examples/easy-form-handling/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "easy-form-handling"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/either/Cargo.toml b/examples/either/Cargo.toml
index 595f9f2..6e83a3b 100644
--- a/examples/either/Cargo.toml
+++ b/examples/either/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "either"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/errors/Cargo.toml b/examples/errors/Cargo.toml
index 4345bd1..60006aa 100644
--- a/examples/errors/Cargo.toml
+++ b/examples/errors/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "my_errors"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/extractors/Cargo.toml b/examples/extractors/Cargo.toml
index 2926e74..af316d6 100644
--- a/examples/extractors/Cargo.toml
+++ b/examples/extractors/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "extractors"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/flexible-responders/Cargo.toml b/examples/flexible-responders/Cargo.toml
index efc4bbc..dcf70c5 100644
--- a/examples/flexible-responders/Cargo.toml
+++ b/examples/flexible-responders/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "flexible-responders"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/getting-started/Cargo.toml b/examples/getting-started/Cargo.toml
index 2bcca17..ae724a0 100644
--- a/examples/getting-started/Cargo.toml
+++ b/examples/getting-started/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "getting-started"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 workspace = "../"
 
 [dependencies]
diff --git a/examples/http2/Cargo.toml b/examples/http2/Cargo.toml
index cb58c1c..18b1217 100644
--- a/examples/http2/Cargo.toml
+++ b/examples/http2/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "http2"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = { version = "4", features = ["openssl"] }
diff --git a/examples/main-example/Cargo.toml b/examples/main-example/Cargo.toml
index 1520908..38557cd 100644
--- a/examples/main-example/Cargo.toml
+++ b/examples/main-example/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "main-example"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/middleware/Cargo.toml b/examples/middleware/Cargo.toml
index 6d68402..ed34ce6 100644
--- a/examples/middleware/Cargo.toml
+++ b/examples/middleware/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "middleware"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/powerful-extractors/Cargo.toml b/examples/powerful-extractors/Cargo.toml
index 03c3cc2..6d173f8 100644
--- a/examples/powerful-extractors/Cargo.toml
+++ b/examples/powerful-extractors/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "powerful-extractors"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/request-handlers/Cargo.toml b/examples/request-handlers/Cargo.toml
index cd25429..271f161 100644
--- a/examples/request-handlers/Cargo.toml
+++ b/examples/request-handlers/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "request-handlers"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/request-routing/Cargo.toml b/examples/request-routing/Cargo.toml
index bdf98a1..b5d3142 100644
--- a/examples/request-routing/Cargo.toml
+++ b/examples/request-routing/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "request-routing"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/requests/Cargo.toml b/examples/requests/Cargo.toml
index 10466f2..c65b6e9 100644
--- a/examples/requests/Cargo.toml
+++ b/examples/requests/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "requests"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/responder-trait/Cargo.toml b/examples/responder-trait/Cargo.toml
index 3aeb933..3aab673 100644
--- a/examples/responder-trait/Cargo.toml
+++ b/examples/responder-trait/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "responder-trait"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/responses/Cargo.toml b/examples/responses/Cargo.toml
index e2c060a..294da16 100644
--- a/examples/responses/Cargo.toml
+++ b/examples/responses/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "responses"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/server/Cargo.toml b/examples/server/Cargo.toml
index 2fb72b2..d3c2b06 100644
--- a/examples/server/Cargo.toml
+++ b/examples/server/Cargo.toml
@@ -2,7 +2,7 @@
 name = "server"
 version = "1.0.0"
 workspace = "../"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = { version = "4", features = ["openssl"] }
diff --git a/examples/static-files/Cargo.toml b/examples/static-files/Cargo.toml
index 948e473..be353d9 100644
--- a/examples/static-files/Cargo.toml
+++ b/examples/static-files/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "static-files"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/testing/Cargo.toml b/examples/testing/Cargo.toml
index 63853e7..a3a06ea 100644
--- a/examples/testing/Cargo.toml
+++ b/examples/testing/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "testing"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix-web = "4"
diff --git a/examples/url-dispatch/Cargo.toml b/examples/url-dispatch/Cargo.toml
index c74dfd9..9ae8b3f 100644
--- a/examples/url-dispatch/Cargo.toml
+++ b/examples/url-dispatch/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "url-dispatch"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 workspace = "../"
 
 [dependencies]
diff --git a/examples/websockets/Cargo.toml b/examples/websockets/Cargo.toml
index 807ad35..174b136 100644
--- a/examples/websockets/Cargo.toml
+++ b/examples/websockets/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "websockets"
 version = "1.0.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 actix = "0.13"