diff --git a/alembic/versions/ba538b2648b7_create_hook_mirror_table.py b/alembic/versions/ba538b2648b7_create_hook_mirror_table.py
new file mode 100644
index 0000000..0897092
--- /dev/null
+++ b/alembic/versions/ba538b2648b7_create_hook_mirror_table.py
@@ -0,0 +1,46 @@
+"""create hook_mirror table
+
+Revision ID: ba538b2648b7
+Revises: 19b67f4b9fe4
+Create Date: 2018-09-27 12:47:21.975843
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'ba538b2648b7'
+down_revision = '19b67f4b9fe4'
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    """ Create the hook_mirror to store the tags of pull-requests.
+    """
+    op.create_table(
+        'hook_mirror',
+        sa.Column(
+            'id',
+            sa.Integer,
+            primary_key=True),
+        sa.Column(
+            'project_id',
+              sa.Integer,
+              sa.ForeignKey(
+                'projects.id', onupdate='CASCADE', ondelete='CASCADE'
+              ),
+              nullable=False,
+              primary_key=True
+        ),
+        sa.Column(
+            'active',
+            sa.Boolean,
+            nullable=False,
+            default=False
+        )
+    )
+
+
+def downgrade():
+    """ Delete the hook_mirror table. """
+    op.drop_table('hook_mirror')