diff --git a/Cargo.lock b/Cargo.lock
index 3108525..bf4c7e2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -547,9 +547,9 @@ checksum = "49874b5167b65d7193b8aba1567f5c7d93d001cafc34600cee003eda787e483f"
 
 [[package]]
 name = "walkdir"
-version = "2.3.3"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36df944cda56c7d8d8b7496af378e6b16de9284591917d307c9b4d313c44e698"
+checksum = "d71d857dc86794ca4c280d616f7da00d2dbfd8cd788846559a6813e6aa4b54ee"
 dependencies = [
  "same-file",
  "winapi-util",
diff --git a/Cargo.toml b/Cargo.toml
index 1fd1671..4c8bf0f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,7 +70,7 @@ version = "0.4.0"
 default-features = false
 
 [dev-dependencies]
-walkdir = "2.3.3"
+walkdir = "2.4.0"
 
 # Note: sometimes it's necessary to run cargo update after patching a dependency.
 [patch.crates-io]