diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 36de0159446..70f942b3661 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -890,6 +890,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "shared_library 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1347,7 +1348,7 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/ports/cef/Cargo.lock b/ports/cef/Cargo.lock
index cecb4d20dd0..26d3027763f 100644
--- a/ports/cef/Cargo.lock
+++ b/ports/cef/Cargo.lock
@@ -880,6 +880,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "shared_library 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
diff --git a/ports/gonk/Cargo.lock b/ports/gonk/Cargo.lock
index cde02e745ae..98a9a7b696e 100644
--- a/ports/gonk/Cargo.lock
+++ b/ports/gonk/Cargo.lock
@@ -1189,7 +1189,7 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]