diff --git a/.changes/lang.md b/.changes/lang.md
new file mode 100644
index 0000000..26aa987
--- /dev/null
+++ b/.changes/lang.md
@@ -0,0 +1,5 @@
+---
+"eval-stack": patch:feat
+---
+
+Add serde derive for `Language` struct.
diff --git a/Cargo.lock b/Cargo.lock
index 479f657..f1bfce1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -70,7 +70,7 @@ checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
 
 [[package]]
 name = "eval-stack"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "anyhow",
  "libc",