diff --git a/Cargo.toml b/Cargo.toml
index dc9b2443..a69d648a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ extern = []
 python = ["dep:numpy", "dep:pyo3"]
 
 [dependencies]
-numpy = {version = "0.20", optional = true}
+numpy = {version = "0.21", optional = true}
 pyo3 = {version = "0.20", features = ["extension-module"], optional = true}
 rand = "0.8.5"
 rand_distr = "0.4.3"