diff --git a/Cargo.lock b/Cargo.lock
index 5ce95d6..b3d0a5f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -300,7 +300,6 @@ dependencies = [
  "log",
  "pretty_env_logger",
  "rand",
- "rand_chacha",
  "strum",
  "strum_macros",
 ]
diff --git a/chrs-lib/Cargo.toml b/chrs-lib/Cargo.toml
index 6382879..e42c347 100644
--- a/chrs-lib/Cargo.toml
+++ b/chrs-lib/Cargo.toml
@@ -11,7 +11,6 @@ lazy_static = "1.4.0"
 rand = "0.8.5"
 strum = "0.24"
 strum_macros = "0.24"
-rand_chacha = "0.3.1"
 instant = "0.1"
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
diff --git a/chrs-lib/src/prng.rs b/chrs-lib/src/prng.rs
index 30df264..1987fb4 100644
--- a/chrs-lib/src/prng.rs
+++ b/chrs-lib/src/prng.rs
@@ -1,11 +1,10 @@
 use rand::prelude::*;
-use rand_chacha::ChaCha20Rng;
 use std::cell::RefCell;
 
 thread_local! {
-    pub static PRNG: RefCell<ChaCha20Rng> = RefCell::new(ChaCha20Rng::seed_from_u64(234239432));
+    pub static PRNG: RefCell<ThreadRng> = RefCell::new(thread_rng());
 }
 
 pub fn random_u64() -> u64 {
     PRNG.with(|rng| rng.borrow_mut().gen())
-}
+}
\ No newline at end of file