diff --git a/Cargo.toml b/Cargo.toml
index 4e7a8900..a3c5741c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ faer = { version = "0.24", default-features = false, features = [
 ] }
 faer-traits = "0.24"
 cudarc = { version = "0.19", default-features = false }
-diffsl = { version = "0.11.9", features = ["rayon"] }
+diffsl = { version = "0.11.9" }
 
 plotly = { version = "0.14" }
 argmin = { version = "0.11.0" }
diff --git a/diffsol-c/Cargo.toml b/diffsol-c/Cargo.toml
index d0c77414..6cee3e9a 100644
--- a/diffsol-c/Cargo.toml
+++ b/diffsol-c/Cargo.toml
@@ -14,6 +14,7 @@ crate-type = ["cdylib", "rlib"]
 [features]
 default = ["diffsl-external-dynamic"]
 wasm = ["getrandom/js"]
+rayon = ["diffsol/rayon", "faer/rayon"]
 external = []
 external-dynamic = []
 diffsl-external-f64 = [
@@ -43,7 +44,7 @@ suitesparse = ["diffsol/suitesparse"]
 
 [dependencies]
 diffsl = { workspace = true }
-diffsol = { path = "../diffsol", version = "0.14.0", features = ["diffsl"] }
+diffsol = { path = "../diffsol", version = "0.14.0", default-features = false, features = ["nalgebra", "faer", "diffsl"] }
 dlmalloc = { version = "0.2", features = ["global"] }
 nalgebra = { workspace = true, features = ["std"] }
 ndarray = { version = "0.17.2" }
@@ -52,12 +53,11 @@ schemars = "1.1.0"
 serde = { workspace = true }
 serde_json = { workspace = true }
 paste = { workspace = true }
+faer = { workspace = true }
 
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 getrandom = { version = "0.2", features = ["js"] }
-faer = { workspace = true }
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 getrandom = { version = "0.2", optional = true }
-faer = { workspace = true, features = ["rayon"] }
diff --git a/diffsol/Cargo.toml b/diffsol/Cargo.toml
index 7d9a8de7..7567c265 100644
--- a/diffsol/Cargo.toml
+++ b/diffsol/Cargo.toml
@@ -15,6 +15,7 @@ readme = "../README.md"
 default = ["nalgebra", "faer"]
 faer = []
 nalgebra = []
+rayon = ["faer/rayon", "diffsl?/rayon"]
 cuda = ["dep:cudarc"]
 sundials = ["suitesparse_sys", "bindgen", "cc"]
 suitesparse = ["suitesparse_sys"]
@@ -57,11 +58,6 @@ cudarc = { workspace = true, optional = true, default-features = false, features
 ] }
 log = "0.4.29"
 serde_json = { workspace = true }
-
-[target.'cfg(not(target_arch = "wasm32"))'.dependencies]
-faer = { workspace = true, features = ["rayon"] }
-
-[target.'cfg(target_arch = "wasm32")'.dependencies]
 faer = { workspace = true }
 
 [dev-dependencies]