diff --git a/.github/workflows/package-checks.yml b/.github/workflows/package-checks.yml
index 64a94d7fde5a9..a2c42af53c3a8 100644
--- a/.github/workflows/package-checks.yml
+++ b/.github/workflows/package-checks.yml
@@ -24,7 +24,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        extra: ["test", "performance", "computation", "fss", "aws", "gcp", "excel", "parquet", "feather", "hdf5", "spss", "postgresql", "mysql", "sql-other", "html", "xml", "plot", "output_formatting", "clipboard", "compression", "consortium-standard", "all"]
+        extra: ["test", "performance", "computation", "fss", "aws", "gcp", "excel", "parquet", "feather", "hdf5", "spss", "postgresql", "mysql", "sql-other", "html", "xml", "plot", "output-formatting", "clipboard", "compression", "consortium-standard", "all"]
       fail-fast: false
     name: Install Extras - ${{ matrix.extra }}
     concurrency:
diff --git a/doc/source/getting_started/install.rst b/doc/source/getting_started/install.rst
index 2c0787397e047..4a0ad4ae658c3 100644
--- a/doc/source/getting_started/install.rst
+++ b/doc/source/getting_started/install.rst
@@ -247,14 +247,14 @@ Dependency                                            Minimum Version    pip ext
 Visualization
 ^^^^^^^^^^^^^
 
-Installable with ``pip install "pandas[plot, output_formatting]"``.
+Installable with ``pip install "pandas[plot, output-formatting]"``.
 
 ========================= ================== ================== =============================================================
 Dependency                Minimum Version    pip extra          Notes
 ========================= ================== ================== =============================================================
 matplotlib                3.6.1              plot               Plotting library
-Jinja2                    3.1.2              output_formatting  Conditional formatting with DataFrame.style
-tabulate                  0.8.10             output_formatting  Printing in Markdown-friendly format (see `tabulate`_)
+Jinja2                    3.1.2              output-formatting  Conditional formatting with DataFrame.style
+tabulate                  0.8.10             output-formatting  Printing in Markdown-friendly format (see `tabulate`_)
 ========================= ================== ================== =============================================================
 
 Computation
diff --git a/doc/source/whatsnew/v2.1.2.rst b/doc/source/whatsnew/v2.1.2.rst
index 97aeb56924e65..6fec66ec8d556 100644
--- a/doc/source/whatsnew/v2.1.2.rst
+++ b/doc/source/whatsnew/v2.1.2.rst
@@ -29,7 +29,7 @@ Bug fixes
 
 Other
 ~~~~~
--
+- Fixed non-working installation of optional dependency group ``output_formatting``. Replacing underscore ``_`` with a dash ``-`` fixes broken dependency resolution. A correct way to use now is ``pip install pandas[output-formatting]``.
 -
 
 .. ---------------------------------------------------------------------------
diff --git a/pyproject.toml b/pyproject.toml
index df89bd129901f..89432c2353ea8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -80,7 +80,7 @@ sql-other = ['SQLAlchemy>=1.4.36']
 html = ['beautifulsoup4>=4.11.1', 'html5lib>=1.1', 'lxml>=4.8.0']
 xml = ['lxml>=4.8.0']
 plot = ['matplotlib>=3.6.1']
-output_formatting = ['jinja2>=3.1.2', 'tabulate>=0.8.10']
+output-formatting = ['jinja2>=3.1.2', 'tabulate>=0.8.10']
 clipboard = ['PyQt5>=5.15.6', 'qtpy>=2.2.0']
 compression = ['zstandard>=0.17.0']
 consortium-standard = ['dataframe-api-compat>=0.1.7']