diff --git a/d3graph/d3graph.py b/d3graph/d3graph.py
index 8b8991e..5c26522 100644
--- a/d3graph/d3graph.py
+++ b/d3graph/d3graph.py
@@ -25,14 +25,13 @@
 from packaging import version
 import datazets as dz
 
-logger = logging.getLogger('')
+logger = logging.getLogger(__name__)
 for handler in logger.handlers[:]:
     logger.removeHandler(handler)
 console = logging.StreamHandler()
 formatter = logging.Formatter('[d3graph] %(levelname)s> %(message)s')
 console.setFormatter(formatter)
 logger.addHandler(console)
-logger = logging.getLogger(__name__)
 
 
 # %%
@@ -894,6 +893,7 @@ def json_create(G: nx.Graph) -> str:
         links[i]['label'] = links[i]['label']
         links[i]['label_color'] = links[i]['label_color']
         links[i]['label_fontsize'] = links[i]['label_fontsize']
+        links[i]['tooltip'] = links[i]['tooltip']
         links_new.append(links[i])
 
     # Set node properties
@@ -1000,6 +1000,7 @@ def adjmat2dict(adjmat: pd.DataFrame,
             'label': Text label for the edge.
             'label_color': color of the label.
             'label_fontsize': fontsize of the label.
+            'tooltip': Text that is shown when hovering over the edge.
 
     """
     # Convert adjacency matrix into vector
@@ -1054,6 +1055,7 @@ def adjmat2dict(adjmat: pd.DataFrame,
     df['label_color']=label_color
     df['label_fontsize']=label_fontsize
     df['edge_style']=edge_style
+    df['tooltip'] = df['weight'].astype(str)
 
     # Creation dictionary
     source_target = list(zip(df['source'], df['target']))
@@ -1070,6 +1072,7 @@ def adjmat2dict(adjmat: pd.DataFrame,
                    'label': df['label'].iloc[i],
                    'label_color': df['label_color'].iloc[i],
                    'label_fontsize': df['label_fontsize'].iloc[i],
+                   'tooltip': df['tooltip'].iloc[i]
                    } for
             i, edge in enumerate(source_target)}
 
@@ -1145,6 +1148,7 @@ def edges2G(edge_properties: dict, G: nx.Graph = None) -> nx.Graph:
                    label=edge_properties[edge]['label'],
                    label_color=edge_properties[edge]['label_color'],
                    label_fontsize=edge_properties[edge]['label_fontsize'],
+                   tooltip=edge_properties[edge]['tooltip']
                    )
     return G
 
diff --git a/d3graph/d3js/d3graphscript.js b/d3graph/d3js/d3graphscript.js
index 22df1bc..2e45fd4 100644
--- a/d3graph/d3js/d3graphscript.js
+++ b/d3graph/d3js/d3graphscript.js
@@ -75,6 +75,8 @@ function d3graphscript(config = {
 //  .style("stroke-width", 1); // WIDTH OF THE LINKS
   ;
 
+  link.append("title").text(function(d) { return d.tooltip; });
+
   // ADD TEXT ON THE EDGES (PART 1/2)
    var linkText = svg.selectAll(".link-text")
      .data(graph.links)
diff --git a/requirements.txt b/requirements.txt
index f8da85f..9dab12d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,6 @@
 colourmap
 ismember
 jinja2
-markupsafe==2.0.1
 networkx>2
 numpy
 packaging
diff --git a/setup.py b/setup.py
index 76ffeec..b298611 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,6 @@
                       'ismember',
                       'jinja2',
                       'packaging',
-                      'markupsafe==2.0.1',
                       'python-louvain',
                       'datazets'],
     python_requires='>=3',