diff --git a/GeoToolkit/Mag/Simulator.py b/GeoToolkit/Mag/Simulator.py
index 8460f8a..0871d8d 100644
--- a/GeoToolkit/Mag/Simulator.py
+++ b/GeoToolkit/Mag/Simulator.py
@@ -237,7 +237,7 @@ def MagSurvey2D(East, North, Azimuth, Length, Sampling, ):
         North=widgets.FloatSlider(min=cntr[1]-Ly, max=cntr[1]+Ly, step=10, value=cntr[1],continuous_update=False),
         Azimuth=widgets.FloatSlider(min=0, max=180, step=5, value=90, continuous_update=False),
         Length=widgets.FloatSlider(min=20, max=diag, step=20, value=diag/2., continuous_update=False),
-        Sampling=widgets.BoundedFloatText(min=10, max=1000, step=5, value=100, continuous_update=False)
+        Sampling=widgets.BoundedIntText(min=10, max=1000, step=5, value=100, continuous_update=False)
         # ColorMap=widgets.Dropdown(
         #           options=cmaps(),
         #           value='Spectral_r',
@@ -922,6 +922,7 @@ def linefun(x1, x2, y1, y2, nx, tol=1e-3):
         data = [data]
 
     for ii, d in enumerate(data):
+        d = d.astype("float64")
         if d.ndim == 1:
             dline = griddata(np.c_[x, y], d, (xLine, yLine), method='linear')
 
@@ -993,7 +994,7 @@ def plotWidget(
                     )
 
         # Parse contour values
-        if Contours is not "":
+        if Contours != "":
             vals = re.split(',', Contours)
             cntrs = []
             for val in vals:
@@ -1002,7 +1003,7 @@ def plotWidget(
                     cntrs += [np.arange(param[0], param[2], param[1])]
 
                 else:
-                    cntrs += [np.float(val)]
+                    cntrs += [float(val)]
             Contours = np.unique(np.sort(np.hstack(cntrs)))
         else:
             Contours = None
@@ -1014,7 +1015,7 @@ def plotWidget(
             saveAs, EPSGcode, SaveGrid, dpi=dpi
         )
 
-        if Contours is not "":
+        if Contours != "":
 
             if SaveShape:
 
@@ -1257,7 +1258,7 @@ def plotWidget(
                     )
 
                 # Parse contour values
-        if Contours is not "":
+        if Contours != "":
             vals = re.split(',', Contours)
             cntrs = []
             for val in vals:
@@ -1266,7 +1267,7 @@ def plotWidget(
                     cntrs += [np.arange(param[0], param[2], param[1])]
 
                 else:
-                    cntrs += [np.float(val)]
+                    cntrs += [float(val)]
 
             Contours = np.unique(np.sort(np.hstack(cntrs)))
         else:
@@ -1279,7 +1280,7 @@ def plotWidget(
             saveAs, EPSGcode, SaveGrid, dpi=dpi
         )
 
-        if Contours is not "":
+        if Contours != "":
 
             if SaveShape:
 
diff --git a/GeoToolkit/graphics/graphics.py b/GeoToolkit/graphics/graphics.py
index b3cccaf..a5af28f 100644
--- a/GeoToolkit/graphics/graphics.py
+++ b/GeoToolkit/graphics/graphics.py
@@ -134,8 +134,10 @@ def equalizeColormap(cmap,bins,cdf,name='EqualizedMap'):
     # first retrieve the color table (lists of RGB values) behind the input colormap
     if cmap in colors.datad: # one of the additional colormaps in colors module
         cmList = colors.datad[cmap]
-    elif cmap in cm.cmap_d: # matplotlib colormaps + plus the new ones (viridis, inferno, etc.)
-        cmList = cmap_to_array(cm.cmap_d[cmap])
+    elif getattr(cm, cmap, "None") is not None:
+        cmList = cmap_to_array(getattr(cm, cmap))
+    # elif cmap in cm.cmap_d: # matplotlib colormaps + plus the new ones (viridis, inferno, etc.)
+    #     cmList = cmap_to_array(cm.cmap_d[cmap])
     else:
         try:
             # in case cmap is a colormap object
@@ -144,7 +146,7 @@ def equalizeColormap(cmap,bins,cdf,name='EqualizedMap'):
             raise ValueError('Colormap {} has not been recognised'.format(cmap))
 
     # normalize the input bins to interval (0,1)
-    bins_norm = (bins - bins.min())/np.float(bins.max() - bins.min())
+    bins_norm = (bins - bins.min())/(bins.max() - bins.min())
 
     # calculate new indices by applying the cdf as a function on the old indices
     # which are initially regularly spaced.
diff --git a/docs/images/GIF.png b/docs/images/GIF.png
index ce736f1..188ad49 100644
Binary files a/docs/images/GIF.png and b/docs/images/GIF.png differ
diff --git a/environment.yml b/environment.yml
index 2fddd92..022c248 100644
--- a/environment.yml
+++ b/environment.yml
@@ -4,11 +4,17 @@ channels:
   - conda-forge
   - defaults
 dependencies:
-  - python=3.8
+  - python=3.10
   - git
   - pip
   - numpy
   - scipy
+  - matplotlib
+  - ipywidgets
+  - geopandas
+  - scikit-image
+  - jupyterlab
+  - simpeg
   - pip:
     - git+https://github.com/geoscixyz/Toolkit.git@main
     - sphinx
@@ -19,7 +25,3 @@ dependencies:
     - numpydoc
     - download
     - tqdm
-  - matplotlib
-  - ipywidgets
-  - geopandas
-  - scikit-image