diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 7188145cfa2..16b46916d19 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -1043,7 +1043,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "malloc_buf"
-version = "0.0.5"
+version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1235,7 +1235,7 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "malloc_buf 0.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "malloc_buf 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index c51f4aef69c..0c6d54dcb23 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -1003,10 +1003,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "malloc_buf"
-version = "0.0.5"
+version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1170,7 +1170,7 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "malloc_buf 0.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "malloc_buf 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index fece50de192..79adbfaec6c 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -979,10 +979,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "malloc_buf"
-version = "0.0.5"
+version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1146,7 +1146,7 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "malloc_buf 0.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "malloc_buf 0.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]