diff --git a/Cargo.lock b/Cargo.lock
index 1e44b36..4a3ca8b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -253,9 +253,9 @@ dependencies = [
 
 [[package]]
 name = "ndarray"
-version = "0.15.4"
+version = "0.15.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dec23e6762830658d2b3d385a75aa212af2f67a4586d4442907144f3bb6a1ca8"
+checksum = "adb12d4e967ec485a5f71c6311fe28158e9d6f4bc4a447b474184d0f91a8fa32"
 dependencies = [
  "matrixmultiply",
  "num-complex",
diff --git a/Cargo.toml b/Cargo.toml
index 52368c4..cdc3f75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ pyo3 = { version = "0.15", features = ["extension-module", "anyhow", "abi3-py37"
 geo-rasterize = "0.1.2"
 numpy = "0.15"
 geo-types = "0.7.2"
-ndarray = "0.15.3"
+ndarray = "0.15.6"
 wkb = "0.7.1"
 anyhow = "1.0.42"