diff --git a/bluebrain/deployment/environments/applications_nse.yaml b/bluebrain/deployment/environments/applications_nse.yaml
index 5f5b883ad00fc5..509ebbe5c15ad6 100644
--- a/bluebrain/deployment/environments/applications_nse.yaml
+++ b/bluebrain/deployment/environments/applications_nse.yaml
@@ -58,5 +58,5 @@ spack:
     - py-morphio
     - py-neuror
     - py-morph-tool+neuron
-    - "py-region-grower ^py-jinja2@3:"  # otherwise, nmodl will fail
+    - py-region-grower
     - py-cwl-registry
diff --git a/var/spack/repos/builtin/packages/py-distributed/package.py b/var/spack/repos/builtin/packages/py-distributed/package.py
index 07b08f4037eb68..ef4dbe7c15205d 100644
--- a/var/spack/repos/builtin/packages/py-distributed/package.py
+++ b/var/spack/repos/builtin/packages/py-distributed/package.py
@@ -48,7 +48,7 @@ class PyDistributed(PythonPackage):
     depends_on("py-click@8.0:", type=("build", "run"), when="@2023.4.1:")
     depends_on("py-cloudpickle@1.5.0:", type=("build", "run"))
     depends_on("py-jinja2", type=("build", "run"), when="@2022.2.1:")
-    depends_on("py-jinja2@2.10.3", type=("build", "run"), when="@2023.4.1:")
+    depends_on("py-jinja2@2.10.3:", type=("build", "run"), when="@2023.4.1:")
     depends_on("py-locket@1:", type=("build", "run"), when="@2022.2.1:")
     depends_on("py-msgpack@0.6.0:", type=("build", "run"))
     depends_on("py-msgpack@1.0.0:", type=("build", "run"), when="@2023.4.1:")