diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 18dacef..3e3ccd1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -54,3 +54,25 @@ jobs:
           upload-name-suffix: "-structlog"
 
       - run: echo Packages can be found at ${{ steps.baipp.outputs.dist }}
+
+  check-pytest:
+    name: Build & verify the pytest package.
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: pytest-dev/pytest
+          path: pytest
+
+      - uses: actions/checkout@v4
+        with:
+          path: action
+
+      - uses: ./action
+        id: baipp
+        with:
+          path: pytest
+          upload-name-suffix: "-pytest"
+
+      - run: echo Packages can be found at ${{ steps.baipp.outputs.dist }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd1f86b..047e722 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased](https://github.com/hynek/build-and-inspect-python-package/compare/v2.2.0...main)
 
+### Fixed
+
+- The action uses *wheel* to unpack wheels again (this is a revert of [#103](https://github.com/hynek/build-and-inspect-python-package/pull/103)) due to [incompatibilities](https://github.com/hynek/build-and-inspect-python-package/issues/113) with, for example, *pytest*.
+  To avoid the confusion due to wrong timestamps, the wheel's tree output in the Summary has no timestamps anymore.
+  [#114](https://github.com/hynek/build-and-inspect-python-package/pull/114)
+
 
 ## [2.2.0](https://github.com/hynek/build-and-inspect-python-package/compare/v2.1.0...v2.2.0) - 2024-03-31
 
diff --git a/README.md b/README.md
index 7e79007..b20f1bb 100644
--- a/README.md
+++ b/README.md
@@ -132,7 +132,8 @@ To save you from downloading the artifacts just to check their contents, *build-
 
 - **SDist contents**: A tree of the source distribution.
 - **Wheel contents**: A tree of the built wheel – if one was built.
-- **Metadata**: A dump of package metadata (includes the PyPI README).
+  This output has no timestamps because `wheel unpack` does not preserve them from the built wheel, leading to confusion.
+- **Metadata**: A plain-text dump of package metadata (includes the PyPI README).
 
 
 ### Examples
diff --git a/action.yml b/action.yml
index f702262..893e78b 100644
--- a/action.yml
+++ b/action.yml
@@ -139,10 +139,10 @@ runs:
 
         if [[ "${{ inputs.skip-wheel }}" != 'true' ]]; then
             mkdir -p out/wheels
-            unzip *.whl -d out/wheels
+            /tmp/baipp/bin/python -m wheel unpack --dest out/wheels *.whl
 
             echo -e '\n<details><summary>Wheel contents</summary>\n' >> $GITHUB_STEP_SUMMARY
-            (cd /tmp/baipp/dist/out/wheels && tree -Da --timefmt="%Y-%m-%dT%H:%M:%SZ" * | sed 's/^/    /' | tee -a $GITHUB_STEP_SUMMARY)
+            (cd /tmp/baipp/dist/out/wheels && tree -a * | sed 's/^/    /' | tee -a $GITHUB_STEP_SUMMARY)
             echo -e '\n</details>\n' >> $GITHUB_STEP_SUMMARY
         fi
 
diff --git a/requirements/tools.in b/requirements/tools.in
index bc8fa44..72e5067 100644
--- a/requirements/tools.in
+++ b/requirements/tools.in
@@ -1,3 +1,4 @@
 build
 check-wheel-contents
 twine
+wheel
diff --git a/requirements/tools.txt b/requirements/tools.txt
index 43f4d97..9904e19 100644
--- a/requirements/tools.txt
+++ b/requirements/tools.txt
@@ -427,6 +427,9 @@ urllib3==2.2.1 \
     # via
     #   requests
     #   twine
+wheel==0.43.0 \
+    --hash=sha256:465ef92c69fa5c5da2d1cf8ac40559a8c940886afcef87dcf14b9470862f1d85 \
+    --hash=sha256:55c570405f142630c6b9f72fe09d9b67cf1477fcf543ae5b8dcb1f5b7377da81
 wheel-filename==1.4.1 \
     --hash=sha256:a53d8ece58822eb27b3a8841c6b4bebf357f19ff0dd83ce9179756f64a4bc0df \
     --hash=sha256:e2e1eb0780910a0148358252aad6394cc674250686c56c39aa379493438370b3