diff --git a/.github/workflows/large-scope.yml b/.github/workflows/large-scope.yml
index 6c1d1db..f85e4c2 100644
--- a/.github/workflows/large-scope.yml
+++ b/.github/workflows/large-scope.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        rust: [1.64.0, beta, nightly]
+        rust: [1.70.0, beta, nightly]
 
     steps:
       - name: Rust install
diff --git a/README.md b/README.md
index 3fda7f6..b3b29ea 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 [![crate](https://img.shields.io/crates/v/tmux-copyrat.svg)](https://crates.io/crates/tmux-copyrat)
 [![documentation](https://docs.rs/tmux-copyrat/badge.svg)](https://docs.rs/tmux-copyrat)
-[![minimum rustc 1.64](https://img.shields.io/badge/rustc-1.64+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
+[![minimum rustc 1.70](https://img.shields.io/badge/rustc-1.70+-blue.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
 [![edition 2021](https://img.shields.io/badge/edition-2021-blue.svg)](https://doc.rust-lang.org/edition-guide/rust-2021/index.html)
 [![tmux 3.x](https://img.shields.io/badge/tmux-3.0+-blue.svg)](https://tmux.github.io)
 [![build status](https://github.com/graelo/tmux-copyrat/actions/workflows/essentials.yml/badge.svg)](https://github.com/graelo/tmux-copyrat/actions)
@@ -23,7 +23,7 @@ The name is a tribute to [tmux-copyrat], which I used for many years for that
 same functionality. For this Rust implementation, I got inspired by
 [tmux-thumbs], and I even borrowed some parts of his regex tests.
 
-Version requirement: _rustc 1.64+_
+Version requirement: _rustc 1.70+_
 
 ## Demo
 
diff --git a/ci/rustup.sh b/ci/rustup.sh
index 54cc527..b343743 100755
--- a/ci/rustup.sh
+++ b/ci/rustup.sh
@@ -5,6 +5,6 @@
 set -ex
 
 ci=$(dirname $0)
-for version in 1.64.0 stable beta nightly; do
+for version in 1.70.0 stable beta nightly; do
     rustup run "$version" "$ci/test_full.sh"
 done
diff --git a/ci/test_full.sh b/ci/test_full.sh
index 500b043..411b2c5 100755
--- a/ci/test_full.sh
+++ b/ci/test_full.sh
@@ -3,7 +3,7 @@
 set -e
 
 CRATE=tmux-copyrat
-MSRV=1.64
+MSRV=1.70
 
 get_rust_version() {
   local array=($(rustc --version));
@@ -28,7 +28,7 @@ if ! check_version $MSRV ; then
 fi
 
 FEATURES=()
-# check_version 1.64 && FEATURES+=(libm)
+# check_version 1.70 && FEATURES+=(libm)
 echo "Testing supported features: ${FEATURES[*]}"
 
 set -x
diff --git a/src/lib.rs b/src/lib.rs
index 0fb5278..36be849 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,7 +12,7 @@
 //! same functionality. For this Rust implementation, I got inspired by
 //! [tmux-thumbs], and I even borrowed some parts of his regex tests.
 //!
-//! Version requirement: _rustc 1.64+_
+//! Version requirement: _rustc 1.70+_
 //!
 //! ## Demo
 //!