diff --git a/src/go.mod b/src/go.mod
index 3f4fb15..fa0c6be 100644
--- a/src/go.mod
+++ b/src/go.mod
@@ -2,4 +2,4 @@ module censorbib-go
 
 go 1.21.3
 
-require github.com/nickng/bibtex v1.3.0
+require github.com/nickng/bibtex v1.4.0
diff --git a/src/go.sum b/src/go.sum
index 44be713..43d9823 100644
--- a/src/go.sum
+++ b/src/go.sum
@@ -1,2 +1,2 @@
-github.com/nickng/bibtex v1.3.0 h1:iv0408z8Xe+FEVquJUo8eraXnhrAF0e+2/WayPcism8=
-github.com/nickng/bibtex v1.3.0/go.mod h1:4BJ3ka/ZjGVXcHOlkzlRonex6U17L3kW6ICEsygP2bg=
+github.com/nickng/bibtex v1.4.0 h1:c5lcFG8RSXE0LrxAlkj9jHpYhzgLLKn2feyrUmiIz8A=
+github.com/nickng/bibtex v1.4.0/go.mod h1:4BJ3ka/ZjGVXcHOlkzlRonex6U17L3kW6ICEsygP2bg=
diff --git a/src/vendor/modules.txt b/src/vendor/modules.txt
index f1b35c8..03268cc 100644
--- a/src/vendor/modules.txt
+++ b/src/vendor/modules.txt
@@ -1,3 +1,3 @@
-# github.com/nickng/bibtex v1.3.0
+# github.com/nickng/bibtex v1.4.0
 ## explicit; go 1.18
 github.com/nickng/bibtex