diff --git a/Cargo.toml b/Cargo.toml
index 79677d017..360239d33 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ homepage = "https://actix.rs"
 repository = "https://github.com/actix/actix-web"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.83"
+rust-version = "1.88"
 
 [profile.dev]
 # Disabling debug info speeds up builds a bunch and we don't rely on it for debugging that much.
diff --git a/actix-files/CHANGES.md b/actix-files/CHANGES.md
index e366fbdd8..7c4d008d8 100644
--- a/actix-files/CHANGES.md
+++ b/actix-files/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.6.9
 
diff --git a/actix-files/README.md b/actix-files/README.md
index e3c712e94..7bc0b90d8 100644
--- a/actix-files/README.md
+++ b/actix-files/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-files?label=latest)](https://crates.io/crates/actix-files)
 [![Documentation](https://docs.rs/actix-files/badge.svg?version=0.6.9)](https://docs.rs/actix-files/0.6.9)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![License](https://img.shields.io/crates/l/actix-files.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-files/0.6.9/status.svg)](https://deps.rs/crate/actix-files/0.6.9)
diff --git a/actix-http-test/CHANGES.md b/actix-http-test/CHANGES.md
index d2e405fe9..be19d251a 100644
--- a/actix-http-test/CHANGES.md
+++ b/actix-http-test/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 3.2.0
 
diff --git a/actix-http-test/README.md b/actix-http-test/README.md
index 617ef1b9b..c242c8ab2 100644
--- a/actix-http-test/README.md
+++ b/actix-http-test/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-http-test?label=latest)](https://crates.io/crates/actix-http-test)
 [![Documentation](https://docs.rs/actix-http-test/badge.svg?version=3.2.0)](https://docs.rs/actix-http-test/3.2.0)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http-test)
 <br>
 [![Dependency Status](https://deps.rs/crate/actix-http-test/3.2.0/status.svg)](https://deps.rs/crate/actix-http-test/3.2.0)
diff --git a/actix-http/CHANGES.md b/actix-http/CHANGES.md
index 4bbd7a880..197370bdf 100644
--- a/actix-http/CHANGES.md
+++ b/actix-http/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 3.11.2
 
diff --git a/actix-http/README.md b/actix-http/README.md
index e94749d61..08dae437c 100644
--- a/actix-http/README.md
+++ b/actix-http/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-http?label=latest)](https://crates.io/crates/actix-http)
 [![Documentation](https://docs.rs/actix-http/badge.svg?version=3.11.2)](https://docs.rs/actix-http/3.11.2)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-http.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-http/3.11.2/status.svg)](https://deps.rs/crate/actix-http/3.11.2)
diff --git a/actix-multipart-derive/CHANGES.md b/actix-multipart-derive/CHANGES.md
index e8f85bbe0..44e0d8435 100644
--- a/actix-multipart-derive/CHANGES.md
+++ b/actix-multipart-derive/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.7.0
 
diff --git a/actix-multipart-derive/README.md b/actix-multipart-derive/README.md
index 82ef49257..05b37dfe8 100644
--- a/actix-multipart-derive/README.md
+++ b/actix-multipart-derive/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-multipart-derive?label=latest)](https://crates.io/crates/actix-multipart-derive)
 [![Documentation](https://docs.rs/actix-multipart-derive/badge.svg?version=0.7.0)](https://docs.rs/actix-multipart-derive/0.7.0)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-multipart-derive.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-multipart-derive/0.7.0/status.svg)](https://deps.rs/crate/actix-multipart-derive/0.7.0)
diff --git a/actix-multipart/CHANGES.md b/actix-multipart/CHANGES.md
index 206374bf0..57b84547d 100644
--- a/actix-multipart/CHANGES.md
+++ b/actix-multipart/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.7.2
 
diff --git a/actix-multipart/README.md b/actix-multipart/README.md
index 1c1e90615..1faacd6a8 100644
--- a/actix-multipart/README.md
+++ b/actix-multipart/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-multipart?label=latest)](https://crates.io/crates/actix-multipart)
 [![Documentation](https://docs.rs/actix-multipart/badge.svg?version=0.7.2)](https://docs.rs/actix-multipart/0.7.2)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-multipart.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-multipart/0.7.2/status.svg)](https://deps.rs/crate/actix-multipart/0.7.2)
diff --git a/actix-router/CHANGES.md b/actix-router/CHANGES.md
index 0a79111bd..781bdefe5 100644
--- a/actix-router/CHANGES.md
+++ b/actix-router/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.5.3
 
diff --git a/actix-router/README.md b/actix-router/README.md
index 3f750b46a..20444904c 100644
--- a/actix-router/README.md
+++ b/actix-router/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-router?label=latest)](https://crates.io/crates/actix-router)
 [![Documentation](https://docs.rs/actix-router/badge.svg?version=0.5.3)](https://docs.rs/actix-router/0.5.3)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-router.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-router/0.5.3/status.svg)](https://deps.rs/crate/actix-router/0.5.3)
diff --git a/actix-test/CHANGES.md b/actix-test/CHANGES.md
index e368e2f7f..fc64cb7a3 100644
--- a/actix-test/CHANGES.md
+++ b/actix-test/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.1.5
 
diff --git a/actix-test/README.md b/actix-test/README.md
index 3bd2d1550..3a0caf2ef 100644
--- a/actix-test/README.md
+++ b/actix-test/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-test?label=latest)](https://crates.io/crates/actix-test)
 [![Documentation](https://docs.rs/actix-test/badge.svg?version=0.1.5)](https://docs.rs/actix-test/0.1.5)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-test.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-test/0.1.5/status.svg)](https://deps.rs/crate/actix-test/0.1.5)
diff --git a/actix-web-actors/CHANGES.md b/actix-web-actors/CHANGES.md
index e85c62bd6..79fecaadf 100644
--- a/actix-web-actors/CHANGES.md
+++ b/actix-web-actors/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 4.3.1 <!-- v4.3.1+deprecated -->
 
diff --git a/actix-web-actors/README.md b/actix-web-actors/README.md
index ff2a1af79..6a2e8f1a8 100644
--- a/actix-web-actors/README.md
+++ b/actix-web-actors/README.md
@@ -8,7 +8,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-web-actors?label=latest)](https://crates.io/crates/actix-web-actors)
 [![Documentation](https://docs.rs/actix-web-actors/badge.svg?version=4.3.1)](https://docs.rs/actix-web-actors/4.3.1)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![License](https://img.shields.io/crates/l/actix-web-actors.svg)
 <br />
 ![maintenance-status](https://img.shields.io/badge/maintenance-deprecated-red.svg)
diff --git a/actix-web-codegen/CHANGES.md b/actix-web-codegen/CHANGES.md
index 5b988d20a..6138892a1 100644
--- a/actix-web-codegen/CHANGES.md
+++ b/actix-web-codegen/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 4.3.0
 
diff --git a/actix-web-codegen/README.md b/actix-web-codegen/README.md
index 1c2462f00..52d522b0a 100644
--- a/actix-web-codegen/README.md
+++ b/actix-web-codegen/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-web-codegen?label=latest)](https://crates.io/crates/actix-web-codegen)
 [![Documentation](https://docs.rs/actix-web-codegen/badge.svg?version=4.3.0)](https://docs.rs/actix-web-codegen/4.3.0)
-![Version](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![License](https://img.shields.io/crates/l/actix-web-codegen.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-web-codegen/4.3.0/status.svg)](https://deps.rs/crate/actix-web-codegen/4.3.0)
diff --git a/actix-web/CHANGES.md b/actix-web/CHANGES.md
index a9f417849..cf5971e9f 100644
--- a/actix-web/CHANGES.md
+++ b/actix-web/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 4.12.1
 
diff --git a/actix-web/README.md b/actix-web/README.md
index df48fbce8..2704399d4 100644
--- a/actix-web/README.md
+++ b/actix-web/README.md
@@ -9,7 +9,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-web?label=latest)](https://crates.io/crates/actix-web)
 [![Documentation](https://docs.rs/actix-web/badge.svg?version=4.12.1)](https://docs.rs/actix-web/4.12.1)
-![MSRV](https://img.shields.io/badge/rustc-1.83+-ab6000.svg)
+![MSRV](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-web.svg)
 [![Dependency Status](https://deps.rs/crate/actix-web/4.12.1/status.svg)](https://deps.rs/crate/actix-web/4.12.1)
 <br />
diff --git a/awc/CHANGES.md b/awc/CHANGES.md
index 22cf447f2..7d09212c2 100644
--- a/awc/CHANGES.md
+++ b/awc/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.83.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 3.8.1