diff --git a/pyo3-ffi-check/Cargo.toml b/pyo3-ffi-check/Cargo.toml
index 9808096b..e1663eb8 100644
--- a/pyo3-ffi-check/Cargo.toml
+++ b/pyo3-ffi-check/Cargo.toml
@@ -6,7 +6,7 @@ publish = false
 
 [dependencies]
 pyo3-ffi-check-macro = { path = "./macro" }
-memoffset = "0.7.0"
+memoffset = "0.9.0"
 
 [dependencies.pyo3-ffi]
 path = "../pyo3-ffi"