diff --git a/dune-project b/dune-project
index 03179bc..ed0537b 100644
--- a/dune-project
+++ b/dune-project
@@ -16,5 +16,9 @@
    ocaml
    dune
    (tsdl (= 1.0.0))
+   (tsdl-image (= 0.6))
    (tgls (= 0.8.6))
-   (sexplib (= v0.16.0))))
+   (sexplib (= v0.16.0))
+   (xmlm (= 1.4.0))
+   (yojson (= 2.1.2))))
+
diff --git a/geometra.opam b/geometra.opam
index d5d307b..2bdc13a 100644
--- a/geometra.opam
+++ b/geometra.opam
@@ -4,8 +4,11 @@ depends: [
   "ocaml"
   "dune" {>= "3.12"}
   "tsdl" {= "1.0.0"}
+  "tsdl-image" {= "0.6"}
   "tgls" {= "0.8.6"}
   "sexplib" {= "v0.16.0"}
+  "xmlm" {= "1.4.0"}
+  "yojson" {= "2.1.2"}
   "odoc" {with-doc}
 ]
 build: [
diff --git a/scripts/dune b/scripts/dune
index 16b07ee..59ec4ec 100644
--- a/scripts/dune
+++ b/scripts/dune
@@ -1,9 +1,11 @@
 (executable
+ (optional)
  (name gen_sprite_map)
  (modules gen_sprite_map)
  (libraries xmlm sexplib))
 
 (executable
+ (optional)
  (name gen_glyph_map)
  (modules gen_glyph_map)
  (libraries yojson sexplib))