diff --git a/Cargo.lock b/Cargo.lock
index 5960c146a..e33351b22 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -806,12 +806,12 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cbindgen"
-version = "0.28.0"
+version = "0.29.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eadd868a2ce9ca38de7eeafdcec9c7065ef89b42b32f0839278d55f35c54d1ff"
+checksum = "975982cdb7ad6a142be15bdf84aea7ec6a9e5d4d797c004d43185b24cfe4e684"
 dependencies = [
  "clap",
- "heck 0.4.1",
+ "heck",
  "indexmap 2.11.4",
  "log",
  "proc-macro2",
@@ -923,7 +923,7 @@ version = "4.5.47"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bbfd7eae0b0f1a6e63d4b13c9c478de77c2eb546fba158ad50b4203dc24b9f9c"
 dependencies = [
- "heck 0.5.0",
+ "heck",
  "proc-macro2",
  "quote",
  "syn 2.0.106",
@@ -1923,12 +1923,6 @@ version = "0.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5419bdc4f6a9207fbeba6d11b604d481addf78ecd10c11ad51e76c2f6482748d"
 
-[[package]]
-name = "heck"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
-
 [[package]]
 name = "heck"
 version = "0.5.0"
@@ -4482,7 +4476,7 @@ version = "0.8.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1c97747dbf44bb1ca44a561ece23508e99cb592e862f22222dcf42f51d1e451"
 dependencies = [
- "heck 0.5.0",
+ "heck",
  "proc-macro2",
  "quote",
  "syn 2.0.106",
diff --git a/c2pa_c_ffi/Cargo.toml b/c2pa_c_ffi/Cargo.toml
index 4c819bb22..561096fb5 100644
--- a/c2pa_c_ffi/Cargo.toml
+++ b/c2pa_c_ffi/Cargo.toml
@@ -39,4 +39,4 @@ tokio = { version = "1.36", features = ["rt-multi-thread", "rt"] }
 tempfile = "3.7.0"
 
 [build-dependencies]
-cbindgen = "0.28"
+cbindgen = "0.29"