diff --git a/arrayjit.opam b/arrayjit.opam
index 0f04064e..e68b2070 100644
--- a/arrayjit.opam
+++ b/arrayjit.opam
@@ -22,7 +22,7 @@ depends: [
   "gccjit" {>= "0.3.2"}
   "printbox"
   "printbox-text"
-  "camlzip"
+  "npy"
   "stdio"
   "num"
   "ppxlib"
diff --git a/dune-project b/dune-project
index 44437168..8bc8790d 100644
--- a/dune-project
+++ b/dune-project
@@ -56,7 +56,7 @@
    (>= 0.3.2))
   printbox
   printbox-text
-  camlzip
+  npy
   stdio
   num
   ppxlib