diff --git a/Cargo.lock b/Cargo.lock
index fda01722a4..c484bbfd04 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2988,9 +2988,9 @@ checksum = "60a357793950651c4ed0f3f52338f53b2f809f32d83a07f72909fa13e4c6c1e3"
 
 [[package]]
 name = "rayon"
-version = "1.8.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa7237101a77a10773db45d62004a272517633fbcc3df19d96455ede1122e051"
+checksum = "e4963ed1bc86e4f3ee217022bd855b297cef07fb9eac5dfa1f788b220b49b3bd"
 dependencies = [
  "either",
  "rayon-core",
diff --git a/tests/tester/Cargo.toml b/tests/tester/Cargo.toml
index 8c344c0d7e..1cf487f0f3 100644
--- a/tests/tester/Cargo.toml
+++ b/tests/tester/Cargo.toml
@@ -24,7 +24,7 @@ regex.workspace = true
 once_cell.workspace = true
 colored.workspace = true
 rustc-hash = { workspace = true, features = ["std"] }
-rayon = "1.8.1"
+rayon = "1.9.0"
 toml = "0.8.10"
 color-eyre = "0.6.2"
 phf = { workspace = true, features = ["macros"] }