diff --git a/conda/meta.yaml b/conda/meta.yaml
index 860039e..4326499 100644
--- a/conda/meta.yaml
+++ b/conda/meta.yaml
@@ -1,9 +1,9 @@
 package:
   name: "dynetx"
-  version: "0.2.7"
+  version: "0.2.8"
 
 source:
-  git_rev: v0.2.7
+  git_rev: v0.2.8
   git_url: https://github.com/GiulioRossetti/dynetx
 
 requirements:
@@ -14,7 +14,8 @@ requirements:
     - python
     - setuptools
   run:
-    - python>=3.7
+    - python>=3.8
+    - pendulum
     - numpy
     - future
     - tqdm
diff --git a/environment.yml b/environment.yml
index f17e7ad..5377011 100644
--- a/environment.yml
+++ b/environment.yml
@@ -3,7 +3,8 @@ channels:
 - conda-forge
 - defaults
 dependencies:
-- python>=3.7
+- python>=3.8
+- pendulum
 - numpy
 - future
 - tqdm
diff --git a/requirements.txt b/requirements.txt
index 0241097..7249275 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +1,6 @@
-numpy~=1.18.1
+numpy
 future
-tqdm~=4.52.0
+tqdm
 networkx>=2.4
-sphinx~=3.1.0
-mock~=4.0.2
 decorator
-matplotlib~=3.3.4
-setuptools~=47.1.1
-pendulum~=2.1.2
\ No newline at end of file
+pendulum
\ No newline at end of file
diff --git a/setup.py b/setup.py
index bdc4635..8d0b2bc 100644
--- a/setup.py
+++ b/setup.py
@@ -21,7 +21,7 @@
 
 
 setup(name='dynetx',
-      version='0.2.77',
+      version='0.2.8',
       license='BSD-Clause-2',
       description='Dynamic Network library',
       url='https://github.com/GiulioRossetti/dynetx',