diff --git a/ghc-tags.yaml b/ghc-tags.yaml
new file mode 100644
index 000000000..04d126a07
--- /dev/null
+++ b/ghc-tags.yaml
@@ -0,0 +1,8 @@
+source_paths:
+- hledger
+- hledger-lib
+- hledger-ui
+- hledger-web
+cpp_options:
+- -DMIN_VERSION_megaparsec(x,y,z)=1
+- -DMIN_VERSION_aeson(x,y,z)=1