diff --git a/Cargo.lock b/Cargo.lock
index 823d90e79..d94f38b01 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1026,6 +1026,7 @@ dependencies = [
  "num-traits",
  "parry2d-f64",
  "parry3d-f64",
+ "robust-predicates",
 ]
 
 [[package]]
diff --git a/crates/fj-math/Cargo.toml b/crates/fj-math/Cargo.toml
index 73342ea30..6aeed7f46 100644
--- a/crates/fj-math/Cargo.toml
+++ b/crates/fj-math/Cargo.toml
@@ -17,3 +17,4 @@ nalgebra = "0.31.2"
 num-traits = "0.2.15"
 parry2d-f64 = "0.10.0"
 parry3d-f64 = "0.10.0"
+robust-predicates = "0.1.3"