diff --git a/forrustts-genetics/Cargo.toml b/forrustts-genetics/Cargo.toml
index eae9de75..76fc4620 100644
--- a/forrustts-genetics/Cargo.toml
+++ b/forrustts-genetics/Cargo.toml
@@ -14,4 +14,4 @@ keywords = ["simulation", "tree_sequences", "tskit", "population_genetics"]
 [dependencies]
 forrustts-core = { version = "0.1.0", path = "../forrustts-core", features = ["rand"]}
 rand = "0.8.5"
-rand_distr = "0.4.3"
+rand_distr = "0.5.0"