diff --git a/recipes/icon-dsl/25.12/gh200/environments.yaml b/recipes/icon-dsl/25.12/gh200/environments.yaml
index 98e0f07..9dec231 100644
--- a/recipes/icon-dsl/25.12/gh200/environments.yaml
+++ b/recipes/icon-dsl/25.12/gh200/environments.yaml
@@ -11,11 +11,13 @@ icon:
   # icon4py deps
   - python@3.11
   - py-cupy@13.3 +cuda cuda_arch=90
-  - ghex@async-mpi +python +cuda cuda_arch=90
+  - ghex
+  - oomph
+  - hwmalloc
   - boost +thread
   - py-mpi4py
-  - icon4py@0.0.15
-  - icon-exclaim @0.3.0 %nvhpc dsl=substitute +grib2 +eccodes-definitions +ecrad
+  - icon4py@git.a967314dad2f83a9163ed7bd332f2c389837c6a8=main
+  - icon-exclaim@git.5f0c6eed726a37ad5e6ca311284b2a43c259c1dc=0.3.0 %nvhpc dsl=substitute +grib2 +eccodes-definitions +ecrad
     ~emvorado +art +dace gpu=nvidia-90 +mpi-gpu +realloc-buf ~aes ~jsbach ~ocean ~coupling
     ~rte-rrtmgp ~loop-exchange ~async-io-rma ~cuda-graphs fflags="-traceback"
   # icon deps
diff --git a/recipes/icon-dsl/25.12/gh200/pre-install b/recipes/icon-dsl/25.12/gh200/pre-install
index 6a08c24..c4b7cd5 100644
--- a/recipes/icon-dsl/25.12/gh200/pre-install
+++ b/recipes/icon-dsl/25.12/gh200/pre-install
@@ -13,7 +13,7 @@ packages=(
     "icon4py"
     # "icon-exclaim"
 )
-SPACK_C2SM_TAG="v0.22.2.6"
+SPACK_C2SM_TAG="tmp_wait_for_compilation"
 
 echo "----------------------------------------"
 echo "SPACK C2SM Setup Script"
diff --git a/recipes/icon-dsl/25.12/gh200/repo/packages/icon-exclaim/package.py b/recipes/icon-dsl/25.12/gh200/repo/packages/icon-exclaim/package.py
index 23cfd3b..3b3f18f 100644
--- a/recipes/icon-dsl/25.12/gh200/repo/packages/icon-exclaim/package.py
+++ b/recipes/icon-dsl/25.12/gh200/repo/packages/icon-exclaim/package.py
@@ -365,7 +365,7 @@ class IconExclaim(Icon):
 
     version('develop', branch='icon-dsl', submodules=True)
     version("0.3.0",
-            commit="5c5b742a969af2bd491e26cd0a05a35838f121c4",
+            commit="5f0c6eed726a37ad5e6ca311284b2a43c259c1dc",
             submodules=True)
 
     # EXCLAIM-GT4Py specific features:
@@ -377,7 +377,6 @@ class IconExclaim(Icon):
             description='Build with GT4Py dynamical core',
             multi=True)
 
-    depends_on("icon4py@0.0.15", when="@0.3.0")       
     for x in dsl_values:
         depends_on('icon4py', type="build", when=f"dsl={x}")