diff --git a/Cargo.lock b/Cargo.lock
index e57cd265f..6df2ef057 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4064,9 +4064,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.242.0"
+version = "0.243.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed3c6e611f4cd748d85c767815823b777dc56afca793fcda27beae4e85028849"
+checksum = "f6d8db401b0528ec316dfbe579e6ab4152d61739cfe076706d2009127970159d"
 dependencies = [
  "bitflags 2.10.0",
  "hashbrown 0.15.5",
diff --git a/src/hyperlight_component_macro/Cargo.toml b/src/hyperlight_component_macro/Cargo.toml
index 28dd57fc4..bd3c2e427 100644
--- a/src/hyperlight_component_macro/Cargo.toml
+++ b/src/hyperlight_component_macro/Cargo.toml
@@ -16,7 +16,7 @@ name = "hyperlight_component_macro"
 proc-macro = true
 
 [dependencies]
-wasmparser = { version = "0.242.0" }
+wasmparser = { version = "0.243.0" }
 quote = { version = "1.0.42" }
 proc-macro2 = { version = "1.0.103" }
 syn = { version = "2.0.111" }
diff --git a/src/hyperlight_component_util/Cargo.toml b/src/hyperlight_component_util/Cargo.toml
index 3a6330355..1292ca527 100644
--- a/src/hyperlight_component_util/Cargo.toml
+++ b/src/hyperlight_component_util/Cargo.toml
@@ -15,7 +15,7 @@ Shared implementation for the procedural macros that generate Hyperlight host an
 name = "hyperlight_component_util"
 
 [dependencies]
-wasmparser = { version = "0.242.0" }
+wasmparser = { version = "0.243.0" }
 quote = { version = "1.0.42" }
 proc-macro2 = { version = "1.0.103" }
 syn = { version = "2.0.111" }
diff --git a/src/hyperlight_component_util/src/elaborate.rs b/src/hyperlight_component_util/src/elaborate.rs
index 120092922..292e9c7e0 100644
--- a/src/hyperlight_component_util/src/elaborate.rs
+++ b/src/hyperlight_component_util/src/elaborate.rs
@@ -66,6 +66,7 @@ mod basic_conversions {
             ExternalKind::Memory => Sort::Core(CoreSort::Memory),
             ExternalKind::Global => Sort::Core(CoreSort::Global),
             ExternalKind::Tag => panic!("core type tags are not supported"),
+            ExternalKind::FuncExact => panic!("core type exact functions are not supported"),
         }
     }
 
@@ -195,6 +196,9 @@ impl<'p, 'a> Ctx<'p, 'a> {
                         TypeRef::Memory(mt) => CoreExternDesc::Memory(*mt),
                         TypeRef::Global(gt) => CoreExternDesc::Global(*gt),
                         TypeRef::Tag(_) => panic!("core type tags are not supported"),
+                        TypeRef::FuncExact(_) => {
+                            panic!("core type exact functions are not supported")
+                        }
                     },
                 }),
             ),
diff --git a/src/tests/rust_guests/witguest/Cargo.lock b/src/tests/rust_guests/witguest/Cargo.lock
index 032aafb5b..eb5642641 100644
--- a/src/tests/rust_guests/witguest/Cargo.lock
+++ b/src/tests/rust_guests/witguest/Cargo.lock
@@ -658,9 +658,9 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "wasmparser"
-version = "0.242.0"
+version = "0.243.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed3c6e611f4cd748d85c767815823b777dc56afca793fcda27beae4e85028849"
+checksum = "f6d8db401b0528ec316dfbe579e6ab4152d61739cfe076706d2009127970159d"
 dependencies = [
  "bitflags",
  "hashbrown 0.15.5",