diff --git a/.dockerignore b/.dockerignore
index 52f7ccb..a1cf873 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -12,6 +12,8 @@
 !mapper/
 !matcher/
 !mappings/
+!testdata/
+testdata/sandbox
 !/LICENSE
 !.dockerignore
 !go.mod