diff --git a/Cargo.toml b/Cargo.toml
index ce33fc3062..57c154d9b5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ edition = "2021"
 resolver = "2"
 
 # note: when changed, also update test runner in `.github/workflows/rust.yml`
-rust-version = "1.70.0"
+rust-version = "1.79.0"
 
 license = "MIT OR Apache-2.0"
 description = "Imaging library. Provides basic image processing and encoders/decoders for common image formats."