diff --git a/Cargo.lock b/Cargo.lock
index ff69d5210..14e347901 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2355,9 +2355,9 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.16.0"
+version = "1.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
+checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
 
 [[package]]
 name = "oorandom"
diff --git a/Cargo.toml b/Cargo.toml
index 1c9d7230e..4cfd9d809 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,7 +49,7 @@ native-tls = "0.2"
 num_cpus = "1.15"
 num-derive = "0.3"
 num-traits = "0.2"
-once_cell = "1.16.0"
+once_cell = "1.17.0"
 percent-encoding = "2.2"
 pgp = { version = "0.9", default-features = false }
 pretty_env_logger = { version = "0.4", optional = true }
diff --git a/deltachat-ffi/Cargo.toml b/deltachat-ffi/Cargo.toml
index e7cc70998..b6e18901b 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 = "0.7"
-once_cell = "1.16.0"
+once_cell = "1.17.0"
 
 [features]
 default = ["vendored"]