diff --git a/Cargo.toml b/Cargo.toml
index febca8e..89ab888 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ status = "actively-developed"
 
 [dev-dependencies]
 criterion = "0.3.1"
-rand="0.7.3"
+rand="0.8.5"
 
 [dependencies]
 no-std-compat = { version = "0.4.1", features = [ "alloc" ] }
diff --git a/benches/benches.rs b/benches/benches.rs
index c6583d8..723f541 100644
--- a/benches/benches.rs
+++ b/benches/benches.rs
@@ -19,7 +19,7 @@ fn init_grid() -> Grid<u32> {
 
 fn criterion_benchmark(c: &mut Criterion) {
     let mut rng = rand::thread_rng();
-    let mut rand = || rng.gen_range(0, SIZE);
+    let mut rand = || rng.gen_range(0..SIZE);
 
     let mut rng_u32 = rand::thread_rng();
     let mut rand_u32 = || rng_u32.gen::<u32>();