diff --git a/ci/docker/build_deps_spack.Dockerfile b/ci/docker/build_deps_spack.Dockerfile
index d8379b8200..d932d65511 100644
--- a/ci/docker/build_deps_spack.Dockerfile
+++ b/ci/docker/build_deps_spack.Dockerfile
@@ -89,8 +89,7 @@ RUN spack external find --all --not-buildable
 ARG CP2K_VERSION
 ENV CP2K_VERSION=${CP2K_VERSION:-psmp}
 COPY ./tools/spack/cp2k_deps_${CP2K_VERSION}.yaml ./
-RUN sed -e "s/~xpmem/+xpmem/" cp2k_deps_${CP2K_VERSION}.yaml > cp2k_deps_${CP2K_VERSION}_tmp.yaml && \
-    mv cp2k_deps_${CP2K_VERSION}_tmp.yaml cp2k_deps_${CP2K_VERSION}.yaml
+RUN sed -i -e "s/~xpmem/+xpmem/" cp2k_deps_${CP2K_VERSION}.yaml
 COPY ./tools/spack/cp2k_dev_repo ${SPACK_PACKAGES_ROOT}/repos/spack_repo/cp2k_dev_repo/
 RUN spack repo add --scope site ${SPACK_PACKAGES_ROOT}/repos/spack_repo/cp2k_dev_repo/
 RUN spack env create myenv cp2k_deps_${CP2K_VERSION}.yaml && \