diff --git a/Cargo.lock b/Cargo.lock
index 49110855ee..94f0f7a076 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -518,7 +518,7 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "smallvec 0.4.5",
+ "smallvec 1.4.1",
  "tempdir",
  "time",
 ]
@@ -2872,12 +2872,6 @@ version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
-[[package]]
-name = "smallvec"
-version = "0.4.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f90c5e5fe535e48807ab94fc611d323935f39d4660c52b26b96446a7b33aef10"
-
 [[package]]
 name = "smallvec"
 version = "0.6.13"
diff --git a/keystore/Cargo.toml b/keystore/Cargo.toml
index aeb8e45751..6f4bbd7f6e 100644
--- a/keystore/Cargo.toml
+++ b/keystore/Cargo.toml
@@ -18,7 +18,7 @@ rustc-hex = "1.0"
 time = "0.1.34"
 parking_lot = "0.11.0"
 codechain-crypto = { git = "https://github.com/CodeChain-io/rust-codechain-crypto.git", version = "0.2" }
-smallvec = "0.4"
+smallvec = "1.4"
 tempdir = "0.3"
 
 [dev-dependencies]