diff --git a/Cargo.lock b/Cargo.lock
index 4df15780f..9abdfba93 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -18,9 +18,9 @@ dependencies = [
 
 [[package]]
 name = "adler"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccc9a9dd069569f212bc4330af9f17c4afb5e8ce185e83dbb14f1349dda18b10"
+checksum = "ee2a4ec343196209d6594e19543ae87a39f96d5534d7174822a3ad825dd6ed7e"
 
 [[package]]
 name = "aho-corasick"