diff --git a/fuzz/Cargo.lock b/fuzz/Cargo.lock
index c6b5153..9d97332 100644
--- a/fuzz/Cargo.lock
+++ b/fuzz/Cargo.lock
@@ -4,9 +4,9 @@ version = 4
 
 [[package]]
 name = "arbitrary"
-version = "1.4.2"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c3d036a3c4ab069c7b410a2ce876bd74808d2d0888a82667669f8e783a898bf1"
+checksum = "3bc62ac97cc33321f50863d514c3bc38a453947a8f9e781137e47c7401020aed"
 
 [[package]]
 name = "autocfg"
diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml
index dad8af1..643a934 100644
--- a/fuzz/Cargo.toml
+++ b/fuzz/Cargo.toml
@@ -8,7 +8,7 @@ edition = "2021"
 cargo-fuzz = true
 
 [dependencies]
-arbitrary = "1.4.2"
+arbitrary = "1.5.0"
 libfuzzer-sys = "0.4.13"
 
 [dependencies.irtt-proto]