diff --git a/notebooks/pnCCD/Correct_pnCCD_NBC.ipynb b/notebooks/pnCCD/Correct_pnCCD_NBC.ipynb
index edbada3073d4904d0446095d6e011bc0d1037952..7cefbcab7be90ba22f1323f4d7dd14153496670d 100644
--- a/notebooks/pnCCD/Correct_pnCCD_NBC.ipynb
+++ b/notebooks/pnCCD/Correct_pnCCD_NBC.ipynb
@@ -345,8 +345,6 @@
     "# Display retrieved calibration constants timestamps\n",
     "pnccd_cal.display_markdown_retrieved_constants(metadata=pnccd_metadata)\n",
     "\n",
-    "# display(Markdown(pnccd_cal.report_retrieved_constants_timestamps(metadata=pnccd_metadata)))\n",
-    "\n",
     "metadata = pnccd_metadata[karabo_da]\n",
     "\n",
     "# Validate the constants availability and raise/warn correspondingly. \n",
diff --git a/src/cal_tools/calcat_interface.py b/src/cal_tools/calcat_interface.py
index cc62c99778c8337fb59d0a42309b4ed1fed0b70a..cc5c6161b5926f3bbc34e1ea4529bf37e0db3432 100644
--- a/src/cal_tools/calcat_interface.py
+++ b/src/cal_tools/calcat_interface.py
@@ -14,8 +14,6 @@ from calibration_client.modules import (
     Parameter,
     PhysicalDetectorUnit,
 )
-from IPython.display import Markdown, display
-from tabulate import tabulate
 
 from cal_tools.tools import module_index_to_qm
 
@@ -711,6 +709,8 @@ class CalibrationData:
                 Defaults to
                 "https://in.xfel.eu/calibration/calibration_constant_versions/".
         """
+        from IPython.display import Markdown, display
+        from tabulate import tabulate
 
         def remove_timezone_seconds(timestamp):
             """Remove timezone and seconds.