diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f929c0429..41e6f7fa9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.16.12-dev0
+## 0.16.12-dev1
 
 ### Enhancements
 
@@ -8,6 +8,8 @@
 
 ### Fixes
 
+- **CSV with asserted XLS content-type is correctly identified as CSV.** Resolves a bug where a CSV file with an asserted content-type of `application/vnd.ms-excel` was incorrectly identified as an XLS file.
+
 ## 0.16.11
 
 ### Enhancements
diff --git a/unstructured/__version__.py b/unstructured/__version__.py
index 5e9d1b8bb0..095d056ec7 100644
--- a/unstructured/__version__.py
+++ b/unstructured/__version__.py
@@ -1 +1 @@
-__version__ = "0.16.12-dev0"  # pragma: no cover
+__version__ = "0.16.12-dev1"  # pragma: no cover