diff --git a/notebooks/Gotthard2/Characterize_Darks_Gotthard2_NBC.ipynb b/notebooks/Gotthard2/Characterize_Darks_Gotthard2_NBC.ipynb
index 11a7a5a2d20a11a0d383bd88e5503063d804b173..0007b09ba8af3b9577fc359daae5cb908cab85f3 100644
--- a/notebooks/Gotthard2/Characterize_Darks_Gotthard2_NBC.ipynb
+++ b/notebooks/Gotthard2/Characterize_Darks_Gotthard2_NBC.ipynb
@@ -287,7 +287,7 @@
     "noise_map = dict()\n",
     "offset_map = dict()\n",
     "badpixels_map = dict()\n",
-    "context = psh.ProcessContext(num_workers=15)\n",
+    "context = psh.ProcessContext(num_workers=25)\n",
     "\n",
     "empty_lut = (np.arange(2 ** 12).astype(np.float64) * 2 ** 10 / 2 ** 12).astype(\n",
     "    np.uint16\n",