diff --git a/Changelog.md b/Changelog.md
index 9eb9adc..9087bf8 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,7 +4,7 @@ Changelog
 3.0.0 (next)
 -----
 
-* Minimal supported compiler is Rust 1.64.0
+* Minimal supported compiler is Rust 1.70.0
 
 2.0.0
 -----
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 10add70..22048ac 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.64.0"
+channel = "1.70.0"