diff --git a/releasenotes/notes/fix_library_build-895c081091b18919.yaml b/releasenotes/notes/fix_library_build-895c081091b18919.yaml
new file mode 100644
index 0000000..cf85281
--- /dev/null
+++ b/releasenotes/notes/fix_library_build-895c081091b18919.yaml
@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    Fix library build. Added async package.
diff --git a/setup.cfg b/setup.cfg
index e6d921a..5428c8b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -23,7 +23,9 @@ classifier =
 [options]
 install_requires =
 python_requires = >=3.8
-packages = tenacity
+packages =
+    tenacity
+    tenacity.asyncio
 
 [options.packages.find]
 exclude = tests