diff --git a/components/malloc_size_of/Cargo.toml b/components/malloc_size_of/Cargo.toml
index 22840c89d8a..92b3db44c15 100644
--- a/components/malloc_size_of/Cargo.toml
+++ b/components/malloc_size_of/Cargo.toml
@@ -37,7 +37,7 @@ selectors = { path = "../selectors" }
 serde = { version = "1.0.27", optional = true }
 serde_bytes = { version = "0.10", optional = true }
 servo_arc = { path = "../servo_arc" }
-smallbitvec = "2.1.0"
+smallbitvec = "2.3.0"
 smallvec = "0.6"
 string_cache = { version = "0.7", optional = true }
 thin-slice = "0.1.0"
diff --git a/components/style/Cargo.toml b/components/style/Cargo.toml
index 9ae935c0e4d..17612eff900 100644
--- a/components/style/Cargo.toml
+++ b/components/style/Cargo.toml
@@ -60,8 +60,8 @@ serde = {version = "1.0", optional = true, features = ["derive"]}
 servo_arc = { path = "../servo_arc" }
 servo_atoms = {path = "../atoms", optional = true}
 servo_config = {path = "../config", optional = true}
-smallbitvec = "2.1.1"
-smallvec = "0.6"
+smallbitvec = "2.3.0"
+smallvec = "0.6.6"
 string_cache = { version = "0.7", optional = true }
 style_derive = {path = "../style_derive"}
 style_traits = {path = "../style_traits"}