diff --git a/requirements.txt b/requirements.txt
index e69de29..2861de5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -0,0 +1 @@
+linecache2
diff --git a/setup.cfg b/setup.cfg
index 273cb11..bd62145 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = traceback2
-version = 0.0.1
+version = 1.0.0
 summary = Backports of the traceback module
 description-file =
     README.rst