diff --git a/Cargo.lock b/Cargo.lock
index 2f53c41..20e6b50 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,7 +27,7 @@ dependencies = [
  "spin",
  "uart_16550",
  "volatile",
- "x86_64",
+ "x86_64 0.13.2",
 ]
 
 [[package]]
@@ -52,7 +52,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a3b8cdf877945aa66117c608d4e030c11c1e56402112257762d04d8b7938be97"
 dependencies = [
  "bitflags",
- "x86_64",
+ "x86_64 0.12.4",
 ]
 
 [[package]]
@@ -70,3 +70,13 @@ dependencies = [
  "bit_field",
  "bitflags",
 ]
+
+[[package]]
+name = "x86_64"
+version = "0.13.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b871116e3c83dad0795580b10b2b1dd05cb52ec719af36180371877b09681f7f"
+dependencies = [
+ "bit_field",
+ "bitflags",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 991e1a4..b118f1e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ harness = false
 bootloader = "0.9.11"
 volatile = "0.2.6"
 spin = "0.5.2"
-x86_64 = "0.12.1"
+x86_64 = "0.13.2"
 uart_16550 = "0.2.0"
 
 [dependencies.lazy_static]