diff --git a/Cargo.toml b/Cargo.toml
index 1c6c0d1..93abac7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "stabilizer"
 version = "0.5.0"
+resolver = "2"
 authors = ["Robert Jördens <rj@quartiq.de>"]
 description = "Firmware for the Sinara Stabilizer board (stm32h743, eth, poe, 2 adc, 2 dac)"
 categories = ["embedded", "no-std", "hardware-support", "science"]
diff --git a/dsp/Cargo.toml b/dsp/Cargo.toml
index 82e4a84..972a0f6 100644
--- a/dsp/Cargo.toml
+++ b/dsp/Cargo.toml
@@ -1,6 +1,7 @@
 [package]
 name = "dsp"
 version = "0.1.0"
+resolver = "2"
 authors = ["Robert Jördens <rj@quartiq.de>"]
 edition = "2018"
 
@@ -12,7 +13,7 @@ miniconf = "0.1"
 [dev-dependencies]
 easybench = "1.0"
 rand = "0.8"
-ndarray = { default-features = false, version = "0.15" }
+ndarray = "0.15"
 
 [[bench]]
 name = "micro"