diff --git a/Cargo.lock b/Cargo.lock
index d7a1c5da..d3cc19b8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,9 +2,9 @@
 # It is not intended for manual editing.
 [[package]]
 name = "acpi"
-version = "2.1.0"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46914c9a4b6aa79bcb72687deb3b21599ddfec9a948449bceecc7267b646f33c"
+checksum = "588edec856d4efbd20b3a04279e3ceada79d652c7b459fa094881dd946998790"
 dependencies = [
  "bit_field 0.10.1",
  "log",
diff --git a/Cargo.toml b/Cargo.toml
index 699bdf12..2ecc9fc4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ rtl8139 = []
 pcnet = []
 
 [dependencies]
-acpi = "2.1.0"
+acpi = "2.2.0"
 aml = "0.10.0"
 array-macro = "1.0.5"
 base64 = { version = "0.13.0", default-features = false }