diff --git a/gst-plugin-sodium/Cargo.toml b/gst-plugin-sodium/Cargo.toml
index fc380f2a..9f2646c1 100644
--- a/gst-plugin-sodium/Cargo.toml
+++ b/gst-plugin-sodium/Cargo.toml
@@ -12,7 +12,7 @@ gst = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features
 gst-base = { git = "https://gitlab.freedesktop.org/gstreamer/gstreamer-rs", features = ["v1_14"], package = "gstreamer-base" }
 sodiumoxide = "0.2.1"
 lazy_static = "1.3.0"
-hex = "0.3.2"
+hex = "0.4"
 smallvec = "0.6"
 
 # example