diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2d109bd0..ec23a734 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,7 +3,7 @@ version: 2
 jobs:
   installation:
     docker:
-      - image: ersiliaos/conda:3.7
+      - image: ersiliaos/conda:8
     steps:
       - checkout
       - run:
@@ -18,7 +18,7 @@ jobs:
               ersilia --help
   test:
     docker:
-      - image: ersiliaos/conda:3.7
+      - image: ersiliaos/conda:3.8
     steps:
       - checkout
       - run:
@@ -66,7 +66,7 @@ jobs:
               ersilia -v delete molecular-weight
   docs-build:
     docker:
-      - image: ersiliaos/conda:3.7
+      - image: ersiliaos/conda:3.8
     steps:
       - checkout
       - run:
diff --git a/.github/workflows/tests_and_cleanup.yml b/.github/workflows/tests_and_cleanup.yml
index c15e07f7..cb369ab8 100644
--- a/.github/workflows/tests_and_cleanup.yml
+++ b/.github/workflows/tests_and_cleanup.yml
@@ -11,7 +11,7 @@ jobs:
   install-ersilia:
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     runs-on: ubuntu-latest
 
     steps:
@@ -32,7 +32,7 @@ jobs:
   test-docker:
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
diff --git a/.gitignore b/.gitignore
index 4e463cef..a139645d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 # Added by Ersilia
-
+# Environment variables
+.env
 *.pyc
 *.vscode
 *.code-workspace
diff --git a/pyproject.toml b/pyproject.toml
index 747e3568..a904fb22 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,10 +10,11 @@ repository = "https://github.com/ersilia-os/ersilia"
 documentation = "https://ersilia.io/model-hub"
 keywords= ["drug-discovery", "machine-learning", "ersilia", "open-science", "global-health", "model-hub", "infectious-diseases"]
 classifiers=[
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
         "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
         "Operating System :: OS Independent",
         "Topic :: Scientific/Engineering :: Artificial Intelligence",
@@ -27,11 +28,10 @@ include = [
 ]
 
 [tool.poetry.dependencies]
-python = ">=3.7"
+python = ">=3.8"
 inputimeout = "^1.0.4"
 emoji = "^2.8.0"
 validators = [
-    {version="0.20.0", python="3.7.*"},
     {version="~0.21.0", python=">=3.8"},
 ]
 
@@ -49,7 +49,7 @@ numpy = "<=1.26.4"
 isaura = {version="0.1", optional=true}
 pytest = {version = "^7.4.0", optional = true}
 fuzzywuzzy = {version = "^0.18.0", optional = true}
-sphinx = {version = ">=5.3.0", optional = true} # For compatibility with python 3.7.x
+sphinx = {version = ">=6.0.0", optional = true} # for minimum version and support for Python 3.10
 jinja2 = {version = "^3.1.2", optional = true}
 scipy = {version = "<=1.10.0", optional = true}