diff --git a/.travis.yml b/.travis.yml
index 352642c6..53bba1e5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ matrix:
 
 language: rust
 rust:
-    - nightly-2019-09-11
+    - nightly-2019-09-25
 cache:
     - cargo: true
 
diff --git a/tests/chrdev-region-allocation/src/lib.rs b/tests/chrdev-region-allocation/src/lib.rs
index 742de7f0..027ac02d 100644
--- a/tests/chrdev-region-allocation/src/lib.rs
+++ b/tests/chrdev-region-allocation/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use linux_kernel_module::{self, cstr};
 
diff --git a/tests/chrdev/src/lib.rs b/tests/chrdev/src/lib.rs
index 4397d067..7c7b7059 100644
--- a/tests/chrdev/src/lib.rs
+++ b/tests/chrdev/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use linux_kernel_module::{self, cstr};
 
diff --git a/tests/filesystem/src/lib.rs b/tests/filesystem/src/lib.rs
index 02f7aed8..d9fa7128 100644
--- a/tests/filesystem/src/lib.rs
+++ b/tests/filesystem/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 extern crate alloc;
 
diff --git a/tests/printk/src/lib.rs b/tests/printk/src/lib.rs
index 1548c926..049aade5 100644
--- a/tests/printk/src/lib.rs
+++ b/tests/printk/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use linux_kernel_module::{self, println};
 
diff --git a/tests/sysctl-get/src/lib.rs b/tests/sysctl-get/src/lib.rs
index 3080bc0d..8aed402b 100644
--- a/tests/sysctl-get/src/lib.rs
+++ b/tests/sysctl-get/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use core::sync::atomic::{AtomicBool, Ordering};
 
diff --git a/tests/sysctl/src/lib.rs b/tests/sysctl/src/lib.rs
index 598680d2..0b95b8dd 100644
--- a/tests/sysctl/src/lib.rs
+++ b/tests/sysctl/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use core::sync::atomic::AtomicBool;
 
diff --git a/tests/utils/src/lib.rs b/tests/utils/src/lib.rs
index 79dcde2e..49daaf62 100644
--- a/tests/utils/src/lib.rs
+++ b/tests/utils/src/lib.rs
@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(const_str_as_bytes)]
 
 use linux_kernel_module;