diff --git a/Cargo.toml b/Cargo.toml
index 419be6de..ee28f1e1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,16 +12,14 @@ license = "MIT"
 edition = '2018'
 
 [dependencies.x86]
-version = "0.45.0"
+version = "0.47.0"
 features = ["performance-counter"]
 
 [dependencies]
 bitflags = "1.2.1"
 libc = "0.2"
 mmap = "0.1.*"
-byteorder = "1.3.4"
 nom = "4.2.3"
-phf = "0.9.0"
 
 [[bin]]
 name = "perfcnt-list"
diff --git a/rust-toolchain b/rust-toolchain
index 07ade694..2bf5ad04 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly
\ No newline at end of file
+stable
diff --git a/src/bin/list.rs b/src/bin/list.rs
index e8d86628..19895f45 100644
--- a/src/bin/list.rs
+++ b/src/bin/list.rs
@@ -1,6 +1,3 @@
-extern crate perfcnt;
-extern crate x86;
-
 use x86::perfcnt::intel::{events, EventDescription};
 
 fn print_counter(id: &str, info: &EventDescription) {
diff --git a/src/bin/parse.rs b/src/bin/parse.rs
index eec5f6f8..c75fc8f0 100644
--- a/src/bin/parse.rs
+++ b/src/bin/parse.rs
@@ -1,5 +1,3 @@
-extern crate perfcnt;
-
 use std::env;
 use std::fs::File;
 use std::io::prelude::*;
diff --git a/src/bin/stats.rs b/src/bin/stats.rs
index fcfc4c96..e9bd19e2 100644
--- a/src/bin/stats.rs
+++ b/src/bin/stats.rs
@@ -1,7 +1,3 @@
-extern crate perfcnt;
-extern crate phf;
-extern crate x86;
-
 use x86::perfcnt::intel::events;
 
 fn print_stats(year: &'static str, name: &'static str, size: usize) {