diff --git a/spack-ext/repos/spack-stack/packages/neptune-env/package.py b/spack-ext/repos/spack-stack/packages/neptune-env/package.py
index 917ea8865..f79968eac 100644
--- a/spack-ext/repos/spack-stack/packages/neptune-env/package.py
+++ b/spack-ext/repos/spack-stack/packages/neptune-env/package.py
@@ -34,7 +34,11 @@ class NeptuneEnv(BundlePackage):
     depends_on("p4est", type="run")
     depends_on("w3emc", type="run")
     depends_on("w3nco", type="run")
-    depends_on("ip@5:", type="run")
+    depends_on("sp", type="run", when="%aocc")
+    depends_on("ip@5:", type="run", when="%apple-clang")
+    depends_on("ip@5:", type="run", when="%gcc")
+    depends_on("ip@5:", type="run", when="%intel")
+    depends_on("ip@5:", type="run", when="%oneapi")
     depends_on("esmf", type="run")
     depends_on("nco", type="run")
     depends_on("mct", type="run")