diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 99cb1e40..50d2ce6e 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -56,7 +56,7 @@ jobs:
       disable_tests: true
       extra_packages: libudev-dev
       target: x86_64-unknown-linux-gnu
-      toolchain: "1.46.0"
+      toolchain: "1.56.1"
 
   # --------------------------------------------------------------------------
   # BUILD
diff --git a/Cargo.toml b/Cargo.toml
index 7c1404e8..c0595387 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ categories = ["hardware-support"]
 [target."cfg(unix)".dependencies]
 bitflags = "1.3.2"
 cfg-if = "1.0.0"
-nix = { version = "0.25.0", default-features = false, features = ["fs", "ioctl", "poll", "signal", "term"] }
+nix = { version = "0.26", default-features = false, features = ["fs", "ioctl", "poll", "signal", "term"] }
 
 [target.'cfg(all(target_os = "linux", not(target_env = "musl")))'.dependencies]
 libudev = { version = "0.3.0", optional = true }
diff --git a/README.md b/README.md
index 0aa979e9..a678e5b4 100644
--- a/README.md
+++ b/README.md
@@ -100,7 +100,7 @@ can help debug software or hardware errors.
 
 # Dependencies
 
-Rust versions 1.46.0 and higher are supported.
+Rust versions 1.56.1 and higher are supported.
 
 For GNU Linux `pkg-config` headers are required: