diff --git a/docs/changelog/2576.bugfix.rst b/docs/changelog/2576.bugfix.rst
new file mode 100644
index 000000000..dcf1acacd
--- /dev/null
+++ b/docs/changelog/2576.bugfix.rst
@@ -0,0 +1 @@
+Add missing 'build' test dependency - by :user:`ssbarnea`.
diff --git a/pyproject.toml b/pyproject.toml
index c7ab29864..0165c3998 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,14 +22,14 @@ maintainers = [
 requires-python = ">=3.7"
 dependencies = [
   "cachetools>=5.2",
-  "chardet>=5",
+  "chardet>=5.1",
   "colorama>=0.4.6",
   "packaging>=21.3",
   "platformdirs>=2.5.4",
   "pluggy>=1",
   "pyproject-api>=1.1.2",
   'tomli>=2.0.1; python_version < "3.11"',
-  "virtualenv>=20.16.7",
+  "virtualenv>=20.17",
   'importlib-metadata>=5.1; python_version < "3.8"',
   'typing-extensions>=4.4; python_version < "3.8"',
 ]
@@ -44,6 +44,7 @@ optional-dependencies.docs = [
   "towncrier>=22.8",
 ]
 optional-dependencies.testing = [
+  "build[virtualenv]>=0.9",
   "covdefaults>=2.2",
   "devpi-client>=6.0.2",
   "devpi-server>=6.7",
diff --git a/tox.ini b/tox.ini
index a2cf1137b..db96b509e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -59,7 +59,7 @@ setenv =
 deps =
     mypy==0.991
     types-cachetools>=5.2.1
-    types-chardet>=5.0.4
+    types-chardet>=5.0.4.1
 commands =
     mypy src/tox
     mypy tests
@@ -79,7 +79,7 @@ skip_install = true
 deps =
     build[virtualenv]>=0.9
     check-wheel-contents>=0.4
-    twine>=4.0.1
+    twine>=4.0.2
 commands =
     python -m build -o {envtmpdir} -s -w .
     twine check {envtmpdir}{/}*