diff --git a/notebooks/LPD/Inject_calibration_constants_from_h5files.ipynb b/notebooks/LPD/Inject_calibration_constants_from_h5files.ipynb
index 82e33381c80fe595eaa498953fca9ab284a6bb52..cc8d2203b22a86d354365398361ca2a3e04df4a5 100644
--- a/notebooks/LPD/Inject_calibration_constants_from_h5files.ipynb
+++ b/notebooks/LPD/Inject_calibration_constants_from_h5files.ipynb
@@ -221,7 +221,7 @@
     "    for k_da, pdu in mod_mapping.items():\n",
     "        inp.append((const, k_da, pdu))\n",
     "\n",
-    "with multiprocessing.Pool(processes=16) as pool:\n",
+    "with multiprocessing.Pool(processes=5) as pool:\n",
     "    results = pool.starmap(inject_constants, inp)"
    ]
   }