diff --git a/caisar.opam b/caisar.opam
index d3656036486853eb3baffe0deb5389a92dddb0a7..74c8d060fdf3b6ffbd5397bef13314f4f055907a 100644
--- a/caisar.opam
+++ b/caisar.opam
@@ -13,6 +13,7 @@ depends: [
   "yojson" {>= "1.7.0"}
   "menhirLib" {>= "20210310"}
   "ppx_deriving_yojson" {>= "3.6.1"}
+  "csv" {>= "2.4"}
   "odoc" {with-doc}
 ]
 build: [
diff --git a/dune-project b/dune-project
index 7698493621f1e31384bcce0b36193e46243e4a55..92ac3071052b1d99663a5b3850128a5b761ee403 100644
--- a/dune-project
+++ b/dune-project
@@ -20,6 +20,7 @@
    (yojson (>= 1.7.0))
    (menhirLib (>= 20210310))
    (ppx_deriving_yojson (>= 3.6.1))
+   (csv (>= 2.4))
   )
 )