diff --git a/README.md b/README.md
index 3ba610c..b081a99 100644
--- a/README.md
+++ b/README.md
@@ -109,6 +109,14 @@ g = reader.read()
 
 ### Running Algorithms
 
+We need to install louvain and graspologic first, to run louvain and leiden algorithm that are not included in NetworkX(not like Pagerank etc).
+
+```bash
+pip3 install python-louvain graspologic
+```
+
+Then we can run the algorithms.
+
 ```python
 import networkx as nx
 import community as community_louvain
@@ -123,6 +131,14 @@ pr = nx.pagerank(
 # Run Louvain community detection
 ug = g.to_undirected()
 louvain = community_louvain.best_partition(ug)
+
+# Run Leiden community detection
+
+from graspologic.partition import hierarchical_leiden
+
+# Cast Multi-Graph to Homogeneous Graph
+g = nx.Graph(g)
+community_hierarchical_clusters = hierarchical_leiden(ug, max_cluster_size=10)
 ```
 
 ### Writing Results Back to NebulaGraph
diff --git a/pyproject.toml b/pyproject.toml
index 54c5ba8..87b7b80 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,7 +92,6 @@ dependencies = [
     "pandas>=1.3.5",
     "numpy>=1.21.6",
     "scipy>=1.7.3",
-    "python-louvain>=0.16",
 ]
 requires-python = ">=3.7.1"
 readme = "README.md"