diff --git a/Cargo.toml b/Cargo.toml
index 0825f500c..885a9dc61 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -132,6 +132,8 @@ jj-lib = { path = "lib", version = "0.22.0" }
 jj-lib-proc-macros = { path = "lib/proc-macros", version = "0.22.0" }
 testutils = { path = "lib/testutils" }
 
+[workspace.lints.clippy]
+
 # Insta suggests compiling these packages in opt mode for faster testing.
 # See https://docs.rs/insta/latest/insta/#optional-faster-runs.
 [profile.dev.package]
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index ef261d178..bf9b4de4c 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -117,3 +117,6 @@ watchman = ["jj-lib/watchman"]
 # The archive name is jj, not jj-cli. Also, `cargo binstall` gets
 # confused by the `v` before versions in archive name.
 pkg-url = "{ repo }/releases/download/v{ version }/jj-v{ version }-{ target }.{ archive-format }"
+
+[lints]
+workspace = true
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index e45e45f88..d6f068aad 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -100,3 +100,6 @@ git = ["dep:git2", "dep:gix", "dep:gix-filter"]
 vendored-openssl = ["git2/vendored-openssl"]
 watchman = ["dep:tokio", "dep:watchman_client"]
 testing = ["git"]
+
+[lints]
+workspace = true
diff --git a/lib/gen-protos/Cargo.toml b/lib/gen-protos/Cargo.toml
index 13f3043e6..ac6f4a368 100644
--- a/lib/gen-protos/Cargo.toml
+++ b/lib/gen-protos/Cargo.toml
@@ -9,3 +9,6 @@ license = { workspace = true }
 
 [dependencies]
 prost-build = { workspace = true }
+
+[lints]
+workspace = true
diff --git a/lib/proc-macros/Cargo.toml b/lib/proc-macros/Cargo.toml
index e26bfa26b..8f2c00034 100644
--- a/lib/proc-macros/Cargo.toml
+++ b/lib/proc-macros/Cargo.toml
@@ -20,3 +20,6 @@ proc-macro = true
 proc-macro2 = { workspace = true }
 quote = { workspace = true }
 syn = { workspace = true }
+
+[lints]
+workspace = true
diff --git a/lib/testutils/Cargo.toml b/lib/testutils/Cargo.toml
index 62b0ed866..8bc3309ef 100644
--- a/lib/testutils/Cargo.toml
+++ b/lib/testutils/Cargo.toml
@@ -25,3 +25,6 @@ jj-lib = { workspace = true, features = ["testing"] }
 pollster = { workspace = true }
 rand = { workspace = true }
 tempfile = { workspace = true }
+
+[lints]
+workspace = true