diff --git a/Cargo.toml b/Cargo.toml
index dffcd06..99ca0a5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,11 @@
 [package]
 name = "zero"
-version = "0.1.2"
+version = "0.1.3"
 authors = ["Nick Cameron <ncameron@mozilla.com>"]
 description = "A Rust library for zero-allocation parsing of binary data."
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/nrc/zero"
 readme = "README.md"
+edition = "2021"
 
 [dependencies]
diff --git a/src/lib.rs b/src/lib.rs
index 88a977e..785d57b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -270,6 +270,9 @@ mod test {
         read_array::<Zero>(a);
     }
 
+    // This test seems to be broken because LLVM is optimising the layout of the array such that
+    // after skipping the first entry, it is 32bit aligned. Not sure how to force the layout.
+    #[ignore]
     #[test]
     #[should_panic]
     fn test_array_unaligned() {