diff --git a/ci/spack.yaml b/ci/spack.yaml
index 466140653..59212956f 100644
--- a/ci/spack.yaml
+++ b/ci/spack.yaml
@@ -8,7 +8,7 @@ spack:
   - netcdf-fortran@4.6.0
   - bacio@2.4.1
   - g2@3.4.5
-  - ip@4.3.0 precision=d
+  - ip@4.3.0
   - nemsio@2.5.4
   - sp@2.3.3
   - w3emc@2.10.0