diff --git a/book-master/second-edition/Cargo.lock b/book-master/second-edition/Cargo.lock
index 928f6b12..a3741851 100644
--- a/book-master/second-edition/Cargo.lock
+++ b/book-master/second-edition/Cargo.lock
@@ -1,142 +1,176 @@
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+# It is not intended for manual editing.
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+ "lazy_static",
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diff --git a/book-master/second-edition/Cargo.toml b/book-master/second-edition/Cargo.toml
index bb676350..a7b012a6 100644
--- a/book-master/second-edition/Cargo.toml
+++ b/book-master/second-edition/Cargo.toml
@@ -32,5 +32,5 @@ path = "tools/src/bin/convert_quotes.rs"
 walkdir = "0.1.5"
 docopt = "0.6.82"
 rustc-serialize = "0.3.19"
-regex = "0.1.73"
+regex = "1.5.5"
 lazy_static = "0.2.1"