diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 449843ccd..f256132be 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,10 +41,10 @@ jobs:
       PYTHON_VERSION: '3.12'
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python ${{ env.PYTHON_VERSION }}
-      uses: actions/setup-python@v3
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ env.PYTHON_VERSION }}
 
@@ -78,10 +78,10 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build wheels
-      uses: pypa/cibuildwheel@v2.11.2
+      uses: pypa/cibuildwheel@v2.16.2
 
     - uses: actions/upload-artifact@v3
       with:
@@ -96,7 +96,7 @@ jobs:
     runs-on: macos-12
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build wheels
       uses: pypa/cibuildwheel@v2.16.2
@@ -116,7 +116,7 @@ jobs:
     runs-on: macos-12
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Build wheels
       uses: pypa/cibuildwheel@v2.16.2
@@ -138,7 +138,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Install build dependencies
       run: python -m pip install --upgrade cffi
@@ -166,10 +166,10 @@ jobs:
       (github.ref == 'refs/heads/master' || startsWith(github.event.ref, 'refs/tags'))
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up QEMU
-      uses: docker/setup-qemu-action@v1
+      uses: docker/setup-qemu-action@v3
       with:
         platforms: arm64
 
@@ -203,7 +203,7 @@ jobs:
         path: dist
 
     - name: Push build artifacts to PyPI
-      uses: pypa/gh-action-pypi-publish@v1.4.2
+      uses: pypa/gh-action-pypi-publish@v1.8.11
       with:
         skip_existing: true
         user: __token__
diff --git a/docs/history.md b/docs/history.md
index 954d4d558..a94588522 100644
--- a/docs/history.md
+++ b/docs/history.md
@@ -8,6 +8,9 @@ Important changes are emphasized.
 
 ## Unreleased
 
+- **Breaking:** Drop support for Python 3.7
+- Upgrade [libsecp256k1][] to version 0.4.1
+
 ## 18.0.0
 
 - Support Schnorr signatures
diff --git a/pyproject.toml b/pyproject.toml
index 38aadbea8..bb604ad5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=61", "cffi>=1.3.0"]
+requires = ["setuptools>=61", "cffi>=1.3.0", "requests"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -12,7 +12,7 @@ description = "Cross-platform Python CFFI bindings for libsecp256k1"
 license = { file="LICENSE-MIT" }
 keywords = ["secp256k1", "crypto", "elliptic curves", "bitcoin", "ethereum", "cryptocurrency"]
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = [
     "asn1crypto",
     "cffi>=1.3.0"
@@ -25,7 +25,6 @@ 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 :: 3.10',
@@ -49,7 +48,7 @@ addopts = [
     "--import-mode=importlib",
 ]
 [tool.black]
-target-version = ["py37"]
+target-version = ["py38"]
 line-length = 120
 skip-string-normalization = true
 exclude = '''
@@ -73,7 +72,7 @@ exclude = '''
 '''
 
 [tool.ruff]
-target-version = "py37"
+target-version = "py38"
 line-length = 120
 select = ["A", "B", "C", "E", "F", "I", "M", "N", "Q", "RUF", "S", "T", "U", "W", "YTT"]
 ignore = [
diff --git a/tox.ini b/tox.ini
index b164433ff..811696ec5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,6 @@
 [tox]
 skip_missing_interpreters = true
 envlist =
-    3.7
     3.8
     3.9
     3.10