diff --git a/Cargo.lock b/Cargo.lock
index e168162..2f63864 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -26,7 +26,7 @@ dependencies = [
  "enum-iterator",
  "enum-unitary",
  "env_logger",
- "flo_curves",
+ "flo_curves 0.7.0",
  "float-cmp",
  "font-kit",
  "fs2",
@@ -66,7 +66,7 @@ name = "MFEKmath"
 version = "0.1.1"
 source = "git+https://github.com/MFEK/math.rlib?branch=main#281c881c51894c0157f3aaefad9400f50222b183"
 dependencies = [
- "flo_curves",
+ "flo_curves 0.6.1",
  "glifparser",
  "kurbo 0.9.1",
  "log",
@@ -907,7 +907,18 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9deedc0ff8e4848dbc1029e555af16390a8d2ff406f05a2f46c8bd14b2f4de4d"
 dependencies = [
  "itertools 0.10.5",
- "roots",
+ "roots 0.0.7",
+ "smallvec",
+]
+
+[[package]]
+name = "flo_curves"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e9c28a18e81b10d676e4ec5ba46d9a5fe042a3f78b14f0097bc1f086a708e152"
+dependencies = [
+ "itertools 0.10.5",
+ "roots 0.0.8",
  "smallvec",
 ]
 
@@ -1354,7 +1365,7 @@ dependencies = [
  "derive_more",
  "enum-iterator",
  "enum-unitary",
- "flo_curves",
+ "flo_curves 0.6.1",
  "font-kit",
  "glifparser",
  "kurbo 0.8.3",
@@ -2351,6 +2362,12 @@ version = "0.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1c36d2bbc763f480668d6d6790ae2fdd2e52ac0c21a3a26d156f3534a3d9eea9"
 
+[[package]]
+name = "roots"
+version = "0.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "082f11ffa03bbef6c2c6ea6bea1acafaade2fd9050ae0234ab44a2153742b058"
+
 [[package]]
 name = "rustc-demangle"
 version = "0.1.21"
diff --git a/Cargo.toml b/Cargo.toml
index 42124ca..3dff549 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -122,7 +122,7 @@ strum = { version = "0.23", features = ["derive"] }
 image = { version = "0.23", features = ["png"], default-features = false }
 
 # for certain Bézier curve manipulation functions
-flo_curves = "0.6"
+flo_curves = "0.7"
 
 # for exporting UFO .glif files to layers
 plist = "1.3"