diff --git a/cookbook/choose_protocol.ipynb b/cookbook/choose_protocol.ipynb
index 0fa4e59..8221d8c 100644
--- a/cookbook/choose_protocol.ipynb
+++ b/cookbook/choose_protocol.ipynb
@@ -324,7 +324,8 @@
     "            'amber/ff14SB.xml',\n",
     "            'amber/tip3p_standard.xml',\n",
     "            'amber/tip3p_HFE_multivalent.xml',\n",
-    "            'amber/phosaa10.xml'\n",
+    "            'amber/phosaa10.xml',\n",
+    "            'amber/lipid17_merged.xml',\n",
     "        ],\n",
     "        \n",
     "        # Small molecule force field to use with OpenMM template generator:\n",
diff --git a/environment.yaml b/environment.yaml
index 74e7b8a..ea1ab03 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -8,11 +8,11 @@ dependencies:
   - nbval
   - nglview
   - notebook
+  - numpy <2.4.0  # https://github.com/OpenFreeEnergy/cinnabar/issues/198
   - pip
   - pytest
   - pytest-cov
   - pytest-xdist
   - python
-  - gufe >=1.7.0, <1.8.0
-  - openfe==1.8.0
+  - openfe==1.10.0
   - openff-interchange-base != 0.5.1  # https://github.com/openforcefield/openff-interchange/issues/1450