diff --git a/Cargo.toml b/Cargo.toml
index 74792da7..f38ba50f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ homepage = "https://actix.rs"
 repository = "https://github.com/actix/actix-net"
 license = "MIT OR Apache-2.0"
 edition = "2021"
-rust-version = "1.76"
+rust-version = "1.88"
 
 [patch.crates-io]
 actix-codec = { path = "actix-codec" }
diff --git a/README.md b/README.md
index 3193bd09..742492f6 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ See example folders for [`actix-server`](./actix-server/examples) and [`actix-tl
 
 ## MSRV
 
-Crates in this repo currently have a Minimum Supported Rust Version (MSRV) of 1.65. As a policy, we permit MSRV increases in non-breaking releases.
+Crates in this repo currently have a Minimum Supported Rust Version (MSRV) of 1.88. As a policy, we permit MSRV increases in non-breaking releases.
 
 ## License
 
diff --git a/actix-codec/CHANGES.md b/actix-codec/CHANGES.md
index f50ded24..2cfe60d2 100644
--- a/actix-codec/CHANGES.md
+++ b/actix-codec/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.5.2
 
diff --git a/actix-macros/CHANGES.md b/actix-macros/CHANGES.md
index 3900129e..146f69f7 100644
--- a/actix-macros/CHANGES.md
+++ b/actix-macros/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.2.4
 
diff --git a/actix-rt/CHANGES.md b/actix-rt/CHANGES.md
index b651ac7a..6ba3532b 100644
--- a/actix-rt/CHANGES.md
+++ b/actix-rt/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 2.11.0
 
diff --git a/actix-rt/README.md b/actix-rt/README.md
index f1618fe6..31037720 100644
--- a/actix-rt/README.md
+++ b/actix-rt/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-rt?label=latest)](https://crates.io/crates/actix-rt)
 [![Documentation](https://docs.rs/actix-rt/badge.svg?version=2.11.0)](https://docs.rs/actix-rt/2.11.0)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-rt.svg)
 <br />
 [![dependency status](https://deps.rs/crate/actix-rt/2.11.0/status.svg)](https://deps.rs/crate/actix-rt/2.11.0)
diff --git a/actix-server/CHANGES.md b/actix-server/CHANGES.md
index 729953f0..22aee61b 100644
--- a/actix-server/CHANGES.md
+++ b/actix-server/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 2.6.0
 
diff --git a/actix-server/README.md b/actix-server/README.md
index c51e1864..f7bcda42 100644
--- a/actix-server/README.md
+++ b/actix-server/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-server?label=latest)](https://crates.io/crates/actix-server)
 [![Documentation](https://docs.rs/actix-server/badge.svg?version=2.6.0)](https://docs.rs/actix-server/2.6.0)
-[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-server.svg)
 <br />
 [![Dependency Status](https://deps.rs/crate/actix-server/2.6.0/status.svg)](https://deps.rs/crate/actix-server/2.6.0)
diff --git a/actix-service/CHANGES.md b/actix-service/CHANGES.md
index 7a31a56f..5980ae92 100644
--- a/actix-service/CHANGES.md
+++ b/actix-service/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 2.0.3
 
diff --git a/actix-service/README.md b/actix-service/README.md
index 0af08a83..7a31fdc6 100644
--- a/actix-service/README.md
+++ b/actix-service/README.md
@@ -4,7 +4,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-service?label=latest)](https://crates.io/crates/actix-service)
 [![Documentation](https://docs.rs/actix-service/badge.svg?version=2.0.3)](https://docs.rs/actix-service/2.0.3)
-[![Version](https://img.shields.io/badge/rustc-1.46+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2020/03/12/Rust-1.46.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-service.svg)
 [![Dependency Status](https://deps.rs/crate/actix-service/2.0.3/status.svg)](https://deps.rs/crate/actix-service/2.0.3)
 ![Download](https://img.shields.io/crates/d/actix-service.svg)
diff --git a/actix-tls/CHANGES.md b/actix-tls/CHANGES.md
index 4f0bc4e8..4ea54b2f 100644
--- a/actix-tls/CHANGES.md
+++ b/actix-tls/CHANGES.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Minimum supported Rust version (MSRV) is now 1.88.
+
 ## 3.5.0
 
 - Update `rustls-native-certs` (`0.7`) dependency to `0.8`.
diff --git a/actix-tls/README.md b/actix-tls/README.md
index 081c3e7f..a6c15fc5 100644
--- a/actix-tls/README.md
+++ b/actix-tls/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/actix-tls?label=latest)](https://crates.io/crates/actix-tls)
 [![Documentation](https://docs.rs/actix-tls/badge.svg?version=3.5.0)](https://docs.rs/actix-tls/3.5.0)
-[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/actix-tls.svg)
 <br />
 [![Dependency Status](https://deps.rs/crate/actix-tls/3.5.0/status.svg)](https://deps.rs/crate/actix-tls/3.5.0)
diff --git a/actix-tracing/CHANGES.md b/actix-tracing/CHANGES.md
index 8f59bb50..2a9f6c6c 100644
--- a/actix-tracing/CHANGES.md
+++ b/actix-tracing/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.1.0
 
diff --git a/actix-utils/CHANGES.md b/actix-utils/CHANGES.md
index 9cd71ef3..42dea2f3 100644
--- a/actix-utils/CHANGES.md
+++ b/actix-utils/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 3.0.1
 
diff --git a/bytestring/CHANGES.md b/bytestring/CHANGES.md
index d82400d7..b29e3e72 100644
--- a/bytestring/CHANGES.md
+++ b/bytestring/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 1.5.0
 
diff --git a/bytestring/README.md b/bytestring/README.md
index 589c35c4..f55bbc4a 100644
--- a/bytestring/README.md
+++ b/bytestring/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/bytestring?label=latest)](https://crates.io/crates/bytestring)
 [![Documentation](https://docs.rs/bytestring/badge.svg?version=1.5.0)](https://docs.rs/bytestring/1.5.0)
-[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/bytestring.svg)
 <br />
 [![Dependency Status](https://deps.rs/crate/bytestring/1.5.0/status.svg)](https://deps.rs/crate/bytestring/1.5.0)
diff --git a/justfile b/justfile
index 7912634c..8c473132 100644
--- a/justfile
+++ b/justfile
@@ -23,14 +23,6 @@ fmt:
 # Downgrade dependencies necessary to run MSRV checks/tests.
 [private]
 downgrade-for-msrv:
-    cargo {{ toolchain }} update -p=rayon --precise=1.10.0 # next ver: 1.80.0
-    cargo {{ toolchain }} update -p=rayon-core --precise=1.12.1 # next ver: 1.80.0
-    cargo {{ toolchain }} update -p=native-tls --precise=0.2.13 # next ver: 1.80.0
-    cargo {{ toolchain }} update -p=idna_adapter --precise=1.2.0 # next ver: 1.82.0
-    cargo {{ toolchain }} update -p=litemap --precise=0.7.4 # next ver: 1.81.0
-    cargo {{ toolchain }} update -p=zerofrom --precise=0.1.5 # next ver: 1.81.0
-    cargo {{ toolchain }} update -p=half --precise=2.4.1 # next ver: 1.81.0
-    cargo {{ toolchain }} update -p=time --precise=0.3.41 # next ver: 1.81.0
 
 msrv := ```
     cargo metadata --format-version=1 \
diff --git a/local-channel/CHANGES.md b/local-channel/CHANGES.md
index fbd52108..bdc0c7ea 100644
--- a/local-channel/CHANGES.md
+++ b/local-channel/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.1.5
 
diff --git a/local-channel/README.md b/local-channel/README.md
index 5a320383..5cc14692 100644
--- a/local-channel/README.md
+++ b/local-channel/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/local-channel?label=latest)](https://crates.io/crates/local-channel)
 [![Documentation](https://docs.rs/local-channel/badge.svg?version=0.1.5)](https://docs.rs/local-channel/0.1.5)
-[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/local-channel.svg)
 <br />
 [![Dependency Status](https://deps.rs/crate/local-channel/0.1.5/status.svg)](https://deps.rs/crate/local-channel/0.1.5)
diff --git a/local-waker/CHANGES.md b/local-waker/CHANGES.md
index 72431a08..00883d58 100644
--- a/local-waker/CHANGES.md
+++ b/local-waker/CHANGES.md
@@ -2,7 +2,7 @@
 
 ## Unreleased
 
-- Minimum supported Rust version (MSRV) is now 1.76.
+- Minimum supported Rust version (MSRV) is now 1.88.
 
 ## 0.1.4
 
diff --git a/local-waker/README.md b/local-waker/README.md
index f82ca84b..db9d24d8 100644
--- a/local-waker/README.md
+++ b/local-waker/README.md
@@ -6,7 +6,7 @@
 
 [![crates.io](https://img.shields.io/crates/v/local-waker?label=latest)](https://crates.io/crates/local-waker)
 [![Documentation](https://docs.rs/local-waker/badge.svg?version=0.1.4)](https://docs.rs/local-waker/0.1.4)
-[![Version](https://img.shields.io/badge/rustc-1.52+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
+[![Version](https://img.shields.io/badge/rustc-1.88+-ab6000.svg)](https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html)
 ![MIT or Apache 2.0 licensed](https://img.shields.io/crates/l/local-waker.svg)
 <br />
 [![Dependency Status](https://deps.rs/crate/local-waker/0.1.4/status.svg)](https://deps.rs/crate/local-waker/0.1.4)