diff --git a/circuitpython_build_tools/target_versions.py b/circuitpython_build_tools/target_versions.py
index 197a653..8bd2058 100644
--- a/circuitpython_build_tools/target_versions.py
+++ b/circuitpython_build_tools/target_versions.py
@@ -26,4 +26,5 @@
 # The name is used when constructing the zip file names.
 VERSIONS = [
     {"tag": "9.2.4", "name": "9.x"},
+    {"tag": "10.0.0-alpha.2", "name": "10.x"},
 ]