diff --git a/docs/source/api.rst b/docs/source/api.rst
index 220505c..60bf161 100644
--- a/docs/source/api.rst
+++ b/docs/source/api.rst
@@ -9,7 +9,7 @@ Import networkcommons as::
    import networkcommons as nc
 
 Module contents
---------------
+---------------
 
 .. automodule:: networkcommons
    :members:
diff --git a/docs/source/installation.rst b/docs/source/installation.rst
index a8baf8a..d55ce83 100644
--- a/docs/source/installation.rst
+++ b/docs/source/installation.rst
@@ -14,7 +14,7 @@ Currently, it can be installed from GitHub:
 
 
 Setting a conda environment
------
+---------------------------
 
 All required dependencies have been packed in a conda environment file. To create a new conda environment with all the dependencies, you can use the following command: