diff --git a/Cargo.lock b/Cargo.lock
index 625d5e8..51ce0d8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -658,9 +658,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.19.0"
+version = "1.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
 [[package]]
 name = "oorandom"
diff --git a/Cargo.toml b/Cargo.toml
index 2470dc9..b6418d0 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 = "1.19"
+once_cell = "1.20"
 
 [features]
 nightly = []