diff --git a/Cargo.lock b/Cargo.lock
index f96426e0d..af230d435 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3089,9 +3089,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.17.1"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
+checksum = "dd8b5dd2ae5ed71462c540258bedcb51965123ad7e7ccf4b9a8cafaa4a63576d"
 
 [[package]]
 name = "oorandom"
diff --git a/Cargo.toml b/Cargo.toml
index bdd8c7635..cd4f11adb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -61,7 +61,7 @@ mime = "0.3.17"
 num_cpus = "1.15"
 num-derive = "0.3"
 num-traits = "0.2"
-once_cell = "1.17.0"
+once_cell = "1.18.0"
 percent-encoding = "2.2"
 parking_lot = "0.12"
 pgp = { version = "0.10", default-features = false }
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index 5d97eb66b..0934b58ec 100644
--- a/deltachat-ffi/Cargo.toml
+++ b/deltachat-ffi/Cargo.toml
@@ -24,7 +24,7 @@ tokio = { version = "1", features = ["rt-multi-thread"] }
 anyhow = "1"
 thiserror = "1"
 rand = "0.8"
-once_cell = "1.17.0"
+once_cell = "1.18.0"
 yerpc = { version = "0.5.1", features = ["anyhow_expose"] }
 
 [features]