diff --git a/packages/ippl/package.py b/packages/ippl/package.py
index b6b2f37..8ac10fb 100644
--- a/packages/ippl/package.py
+++ b/packages/ippl/package.py
@@ -37,8 +37,7 @@ class Ippl(CMakePackage, CudaPackage):
 
     version("3.2.0", sha256="041a4efbddaba5b477dae01ab166354da7dee01cf625706e19f5b60c0c3f6b88")
 
-    depends_on("kokkos@4.2.00:+openmp")
-    depends_on("heffte@develop")
+    version('opalx-fielddump', branch="opalx-fielddump")
 
     variant(
         "build_type",
@@ -62,11 +61,7 @@ class Ippl(CMakePackage, CudaPackage):
 
     depends_on("cmake@3.25.2:", type="build")
     depends_on("fftw@3.3.10", when="+fft")
-    depends_on("kokkos@4.2.00:+openmp")
-    depends_on("heffte@develop")
-    depends_on("kokkos@4.2.00:+cuda", when="+cuda")
-    depends_on("heffte+fftw", when="+fft")
-    depends_on("heffte+cuda", when="+cuda")
+    depends_on("mpi", when="+mpi")
 
     conflicts("~mpi", msg="IPPL can not run without mpi!")
     conflicts("cuda_arch=none", when="+cuda",
@@ -85,20 +80,20 @@ class Ippl(CMakePackage, CudaPackage):
             self.define_from_variant("ENABLE_ALPINE", "alpine"),
         ]
 
-        if 'platform=cuda' in self.variants:
+        if 'platforms=cuda' in self.spec:
             args.append("-DIPPL_PLATFORMS=CUDA")
-        elif 'platform=openmp' in self.variants:
+        elif 'platforms=openmp' in self.spec:
             args.append("-DIPPL_PLATFORMS=OPENMP")
-        elif 'platform=openmp/cuda' in self.variants:
+        elif 'platforms=openmp/cuda' in self.spec:
             args.append("-DIPPL_PLATFORMS=OPENMP;CUDA")
         else:
             args.append("-DIPPL_PLATFORMS=SERIAL")
 
-        if 'cuda_arch=90' in self.variants:
+        if 'cuda_arch=90' in self.spec:
           args.append("-DKokkos_ARCH_HOPPER90=ON")
-        elif 'cuda_arch=80' in self.variants:
+        elif 'cuda_arch=80' in self.spec:
           args.append("-DKokkos_ARCH_AMPERE80=ON")
-        elif 'cuda_arch=60' in self.variants:
+        elif 'cuda_arch=60' in self.spec:
           args.append("-DKokkos_ARCH_PASCAL61=ON")
 
         return args