diff --git a/Cargo.lock b/Cargo.lock
index 8118d7a..6add498 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -27,9 +27,12 @@ dependencies = [
 
 [[package]]
 name = "convert_case"
-version = "0.4.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6245d59a3e82a7fc217c5828a6692dbc6dfb63a0c8c90495621f7b9d79704a0e"
+checksum = "ec182b0ca2f35d8fc196cf3404988fd8b8c739a4d270ff118a398feb0cbec1ca"
+dependencies = [
+ "unicode-segmentation",
+]
 
 [[package]]
 name = "ctor"
@@ -265,6 +268,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "unicode-segmentation"
+version = "1.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1dd624098567895118886609431a7c3b8f516e41d30e0643f03d94592a147e36"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.1"
diff --git a/safe-builder-derive/Cargo.toml b/safe-builder-derive/Cargo.toml
index 523b9d7..9e62918 100644
--- a/safe-builder-derive/Cargo.toml
+++ b/safe-builder-derive/Cargo.toml
@@ -14,4 +14,4 @@ quote = "^1.0"
 proc-quote = "0.3.2"
 syn = { version = "^1.0", features = ["parsing"] }
 proc-macro2 = "^1.0"
-convert_case = "^0.4.0"
+convert_case = "^0.6.0"