diff --git a/adapters/silent_payments_rust/Cargo.lock b/adapters/silent_payments_rust/Cargo.lock
index 750a740..7a3e416 100644
--- a/adapters/silent_payments_rust/Cargo.lock
+++ b/adapters/silent_payments_rust/Cargo.lock
@@ -117,9 +117,9 @@ checksum = "8f42a60cbdf9a97f5d2305f08a87dc4e09308d1276d28c869c684d7777685682"
 
 [[package]]
 name = "libc"
-version = "0.2.183"
+version = "0.2.186"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b5b646652bf6661599e1da8901b3b9522896f01e736bad5f723fe7a3a27f899d"
+checksum = "68ab91017fe16c622486840e4c83c9a37afeff978bd239b5293d61ece587de66"
 
 [[package]]
 name = "memchr"