diff --git a/Cargo.toml b/Cargo.toml
index 50cb5cb..31f6a31 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,8 +10,8 @@ license = "MIT OR Apache-2.0"
 keywords = ["dsp", "audio", "measurement", "acoustics", "filter"]
 categories = [
     "multimedia::audio",
-    "scientific::dsp",
-    "scientific::engineering"]
+    "science",
+    "mathematics"]
 [lib]
 name = "lasprs"
 crate-type = ["cdylib", "lib"]