diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8df0de73..8b503fad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -45,7 +45,8 @@ include(SetRequiredBuildSettingsForGCC8)
 #Idefix requires Cuda Lambdas (experimental)
 if(Kokkos_ENABLE_CUDA)
   set(Kokkos_ENABLE_CUDA_LAMBDA ON CACHE BOOL "Idefix requires lambdas on Cuda" FORCE)
-  set(Kokkos_ENABLE_IMPL_CUDA_MALLOC_ASYNC OFF CACHE BOOL "Disable Async malloc to avoid bugs on PSM2" FORCE)
+  # CUDA_MALLOC_ASYNC disbaled by default in Kokkos 4.5, so not required here
+  #set(Kokkos_ENABLE_IMPL_CUDA_MALLOC_ASYNC OFF CACHE BOOL "Disable Async malloc to avoid bugs on PSM2" FORCE)
 endif()
 
 # Add kokkos CMAKE files (required early since these set compiler options)
diff --git a/src/kokkos b/src/kokkos
index 15dc143e..09e775bf 160000
--- a/src/kokkos
+++ b/src/kokkos
@@ -1 +1 @@
-Subproject commit 15dc143e5f39949eece972a798e175c4b463d4b8
+Subproject commit 09e775bfc585840bb9ab1156cbd8d7d1c9e0cc6d