diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 635b4edb..7b4972f8 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -18,7 +18,7 @@ embulk-util-file = "0.2.0"
 embulk-util-guess = "0.3.2"
 embulk-util-json = "0.5.0"
 embulk-util-text = "0.2.0"
-embulk-util-rubytime = "0.3.3"
+embulk-util-rubytime = "0.4.0"
 embulk-util-timestamp = "0.3.0"
 
 junit4 = "4.13.2"