diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 90351b4f..39ba78a6 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -52,10 +52,10 @@ check-simulate:
     crate: simulate
 
 clippy:
-  image: rustlang/rust:nightly
+  image: rust
   script:
     - rustup component add clippy
-    - cargo clippy
+    - cargo clippy --all-targets --features strict
 
 # Unfortunately testing can't happen in CI right now because we require Windows.
 .test:
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 5bb6f226..c592b2d7 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -72,7 +72,7 @@ repos:
       name: clippy
       language: system
       files: '[.]rs$'
-      entry: cargo +nightly clippy
+      entry: cargo clippy --all-targets --features strict
       pass_filenames: false
 
     - id: test
diff --git a/brain-test-data/build.rs b/brain-test-data/build.rs
index ce2cb064..a1e069a9 100644
--- a/brain-test-data/build.rs
+++ b/brain-test-data/build.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 use std::{
     env,
diff --git a/brain-test-data/src/lib.rs b/brain-test-data/src/lib.rs
index 4d477497..ab9ca75a 100644
--- a/brain-test-data/src/lib.rs
+++ b/brain-test-data/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 #![allow(clippy::unreadable_literal)]
 
 pub use crate::models::OneVOneScenario;
diff --git a/brain/src/lib.rs b/brain/src/lib.rs
index 0326e56f..f62c4b74 100644
--- a/brain/src/lib.rs
+++ b/brain/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 #![allow(clippy::unreadable_literal)]
 
 pub use crate::{brain::Brain, eeg::EEG};
diff --git a/collect/src/lib.rs b/collect/src/lib.rs
index 9e25cb0f..7f277906 100644
--- a/collect/src/lib.rs
+++ b/collect/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 pub use crate::{
     collector::Collector,
diff --git a/collect/src/main.rs b/collect/src/main.rs
index 89002dcf..24dcfd39 100644
--- a/collect/src/main.rs
+++ b/collect/src/main.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 use crate::{
     collector::Collector,
diff --git a/common/src/lib.rs b/common/src/lib.rs
index c4163e91..047f3fa3 100644
--- a/common/src/lib.rs
+++ b/common/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 pub use crate::{
     ext::ExtendRLBot,
diff --git a/dom/src/lib.rs b/dom/src/lib.rs
index ffdf5920..8304c3b6 100644
--- a/dom/src/lib.rs
+++ b/dom/src/lib.rs
@@ -6,7 +6,7 @@ Rust translation of some code from DomNomNom's [RocketBot].
 
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 pub use crate::{student_agents::get_pitch_yaw_roll, vector_math::to_rotation_matrix};
 
diff --git a/oven/build.rs b/oven/build.rs
index b71db664..53a253a3 100644
--- a/oven/build.rs
+++ b/oven/build.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 use common::prelude::*;
 use nalgebra::{UnitComplex, UnitQuaternion};
diff --git a/oven/src/lib.rs b/oven/src/lib.rs
index 8bbe895e..83d5f6d1 100644
--- a/oven/src/lib.rs
+++ b/oven/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 #![allow(clippy::unreadable_literal)]
 
 pub mod data;
diff --git a/play/src/main.rs b/play/src/main.rs
index 8122745d..4b08df1b 100644
--- a/play/src/main.rs
+++ b/play/src/main.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 
 use brain::{Brain, EEG};
 use chrono::Local;
diff --git a/simulate/src/lib.rs b/simulate/src/lib.rs
index b53b860a..1c41c0dd 100644
--- a/simulate/src/lib.rs
+++ b/simulate/src/lib.rs
@@ -1,6 +1,6 @@
 #![warn(future_incompatible, rust_2018_compatibility, rust_2018_idioms, unused)]
 #![cfg_attr(feature = "strict", deny(warnings))]
-#![deny(clippy::all)]
+#![warn(clippy::all)]
 #![allow(clippy::unreadable_literal)]
 
 pub use crate::{