diff --git a/Cargo.lock b/Cargo.lock
index 10eb06d..fe83402 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -138,9 +138,9 @@ checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
 [[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 = "pkg-config"
diff --git a/Cargo.toml b/Cargo.toml
index 9e87598..241eae2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["Tim Biermann <tbier@posteo.de>"]
 edition = "2021"
 
 [dependencies]
-once_cell = "1.19.0"
+once_cell = "1.20.2"
 libnotify = "1.0.3"
 serde = { version = "1.0.204", features = ["derive"] }
 serde_json = "1.0.132"