diff --git a/caimira/apps/calculator/report_generator.py b/caimira/apps/calculator/report_generator.py
index 5795e1b1..14531cbd 100644
--- a/caimira/apps/calculator/report_generator.py
+++ b/caimira/apps/calculator/report_generator.py
@@ -182,7 +182,6 @@ def generate_permalink(base_url, get_root_url,  get_root_calculator_url, form: F
 
 
 def uncertainties_plot(exposure_models):
-    from tqdm import tqdm
     fig = plt.figure(figsize=(7, 10))
     viral_loads = np.linspace(2, 10, 600)
 
@@ -193,7 +192,7 @@ def uncertainties_plot(exposure_models):
         lower_percentiles = []
         upper_percentiles = []
 
-        for vl in tqdm(viral_loads):
+        for vl in viral_loads:
             model_vl = dataclass_utils.replace(exposure_mc, 
                 concentration_model = models.ConcentrationModel(
                     room=concentration_model.room,