diff --git a/Cargo.lock b/Cargo.lock
index 204bea8..d42f313 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -659,9 +659,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.18.0"
+version = "1.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
+checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
 
 [[package]]
 name = "oorandom"
diff --git a/Cargo.toml b/Cargo.toml
index 8ef3e2a..e908679 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ bincode = "1"
 criterion = "0.5"
 ed25519-zebra-legacy = { package = "ed25519-zebra", version = "1" }
 color-eyre = "0.6"
-once_cell = "1.4"
+once_cell = "1.19"
 
 [features]
 nightly = []