diff --git a/Cargo.lock b/Cargo.lock
index 9960ed6..4b267a2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -159,7 +159,7 @@ dependencies = [
  "anchor-lang",
  "anchor-lang-idl-spec",
  "darling",
- "heck 0.4.1",
+ "heck 0.5.0",
  "proc-macro2",
  "quote",
  "serde_json",
@@ -704,9 +704,9 @@ dependencies = [
 
 [[package]]
 name = "heck"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "ident_case"
diff --git a/crates/anchor-idl/Cargo.toml b/crates/anchor-idl/Cargo.toml
index a9fd850..1549922 100644
--- a/crates/anchor-idl/Cargo.toml
+++ b/crates/anchor-idl/Cargo.toml
@@ -14,7 +14,7 @@ compat-program-result = []
 [dependencies]
 anchor-lang-idl-spec = "0.1.0"
 darling = "0.14"
-heck = "0.4.1"
+heck = "0.5.0"
 proc-macro2 = "1"
 quote = "1"
 serde_json = "1.0.108"