diff --git a/.github/CONTRIBUTING_GUIDE.rst b/.github/CONTRIBUTING_GUIDE.rst
index 4d702dc6f..cafcbcb97 100644
--- a/.github/CONTRIBUTING_GUIDE.rst
+++ b/.github/CONTRIBUTING_GUIDE.rst
@@ -51,7 +51,7 @@ How to set up your development environment
    Invoking ``make`` without any arguments will display
    auto-generated documentation on available commands.
 
-Make sure you have Python 3.7+ and Poetry_ installed and configured.
+Make sure you have Python 3.8+ and Poetry_ installed and configured.
 
 Install the package with development requirements:
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/.github/workflows/publish_benchmarks.yml b/.github/workflows/publish_benchmarks.yml
index 378823a6a..a725a4cb3 100644
--- a/.github/workflows/publish_benchmarks.yml
+++ b/.github/workflows/publish_benchmarks.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-latest", "windows-latest", "macos-latest"]
-        python-version: ["3.7", "3.8", "3.9"]
+        python-version: ["3.8", "3.9"]
         library-type: ["pure_python"]
 
     name: icontract benchmarks for Python ${{ matrix.python-version }} (${{ matrix.os }})  [${{ matrix.library-type }}]
diff --git a/pyproject.toml b/pyproject.toml
index 7320acee2..0cc9f8529 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,6 @@ classifiers = [
     "Natural Language :: English",
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
-    "Programming Language :: Python :: 3.7",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: Implementation :: CPython",
diff --git a/tox.ini b/tox.ini
index da5a5b2e7..580261f24 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 skip_missing_interpreters = true
 isolated_build = true
 envlist =
-    py3{7,8,9}
+    py3{8,9}
 
 [base_configs]
 wheel = false
@@ -28,7 +28,7 @@ commands = pytest \
 wheel = {[base_configs]wheel}
 parallel_show_output = {[base_configs]parallel_show_output}
 
-[testenv:py3{7,8,9}-benchmark-{pure_python}]
+[testenv:py3{8,9}-benchmark-{pure_python}]
 description = Run performance testing under {basepython}
 setenv =
     {[testenv]setenv}