diff --git a/Cargo.toml b/Cargo.toml
index 3969a37..cbef50e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tiff_tags_nightly"
-version = "1.1.1"
+version = "1.2.0"
 edition = "2021"
 license = "MIT"
 keywords = ["image", "metadata", "exif", "TIFF", "tags"]
diff --git a/src/lib.rs b/src/lib.rs
index 09c9a8f..551ebfa 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,4 +1,4 @@
-#![feature(once_cell)]
+#![feature(lazy_cell)]
 
 mod tests;