diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index d317dce..aab8173 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.55"
+channel = "1.56"
 components = ["clippy"]
 targets = ["armv7-unknown-linux-gnueabihf", "aarch64-unknown-linux-gnu"]