diff --git a/.github/workflows/ci_pytest.yml b/.github/workflows/ci_pytest.yml
index f26fdb8..bd33e9a 100644
--- a/.github/workflows/ci_pytest.yml
+++ b/.github/workflows/ci_pytest.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7]
+        python-version: ['3.10']
 
     steps:
       - uses: actions/checkout@v2
diff --git a/CITATION.cff b/CITATION.cff
index 0d7a2df..3f88423 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -8,7 +8,7 @@ authors:
   given-names: "Kohulan"
   orcid: "https://orcid.org/0000-0003-1066-7792"
 title: "RanDepict"
-version: 1.0.8
+version: 1.0.9
 doi: 10.5281/zenodo.5205528
 date-released: 2021-08-17
 url: "https://github.com/OBrink/RanDepict"
diff --git a/Python_requirements.txt b/Python_requirements.txt
index 493fdba..e5a924b 100644
--- a/Python_requirements.txt
+++ b/Python_requirements.txt
@@ -4,3 +4,4 @@ scikit-image
 epam.indigo
 jpype1
 ipyplot
+pikachu-chem>=1.0.7
diff --git a/RanDepict/__init__.py b/RanDepict/__init__.py
index 929eaa6..fb6d44b 100644
--- a/RanDepict/__init__.py
+++ b/RanDepict/__init__.py
@@ -21,7 +21,7 @@
 
 """
 
-__version__ = "1.0.8"
+__version__ = "1.0.9"
 
 __all__ = [
     "RanDepict",
diff --git a/setup.py b/setup.py
index b0f042c..f156bd1 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
 
 setuptools.setup(
     name="RanDepict",
-    version="1.0.8",
+    version="1.0.9",
     author="Otto Brinkhaus",
     author_email="otto.brinkhaus@uni-jena.de, kohulan.rajan@uni-jena.de",
     maintainer="Otto Brinkhaus, Kohulan Rajan",
@@ -28,7 +28,7 @@
         "rdkit-pypi",
         "imagecorruptions",
         "pillow>=8.2.0",
-        "pikachu-chem @ git+https://github.com/OBrink/pikachu@accept-markush-structures#egg=pikachu-chem",
+        "pikachu-chem>=1.0.7",
     ],
     package_data={"RanDepict": ["assets/*.*", "assets/*/*.*", "assets/*/*/*.*"]},
     classifiers=[
@@ -37,6 +37,8 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
         "Programming Language :: Python :: 3 :: Only",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
diff --git a/tox.ini b/tox.ini
index f709924..9e4710b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py37,lint
+envlist = py38,py39,py310,lint
 requires = tox-conda
 
 [testenv]
@@ -45,5 +45,3 @@ exclude =
     RanDepict/__init__.py,
     Tests/test_functions.py,
 
-
-