diff --git a/CHANGELOG.md b/CHANGELOG.md
index f075c24..ebe7294 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# v0.2.1
+
+- Widen `vmm-sys-util` to v0.12.0-v0.14.0.
+
 # v0.2.0
 
 - Implement `Versionize` for arrays of arbitrary length, instead of just up to 32.
diff --git a/Cargo.toml b/Cargo.toml
index 5a62d64..e814357 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "versionize"
-version = "0.2.0"
+version = "0.2.1"
 license = "Apache-2.0"
 authors = ["Amazon Firecracker team <firecracker-devel@amazon.com>"]
 description = "A version tolerant serialization/deserialization framework."
@@ -15,7 +15,7 @@ serde_derive = "1.0.27"
 bincode = "1.2.1"
 versionize_derive = "0.1.6"
 crc64 = "2.0.0"
-vmm-sys-util = "0.12.1"
+vmm-sys-util = ">=0.12.0,<=0.14.0"
 
 [build-dependencies]
 proc-macro2 = "1.0"