diff --git a/docs/conf.py b/docs/conf.py
index 91066b217..92b779cdd 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -187,19 +187,8 @@
 
 # -- Options for HTML output -------------------------------------------------
 
-html_theme = "qiskit_sphinx_theme"
-html_theme_options = {
-    "logo_only": False,
-    "display_version": True,
-    "prev_next_buttons_location": "bottom",
-    "style_external_links": False,
-    # Toc options
-    "collapse_navigation": True,
-    "sticky_navigation": True,
-    "navigation_depth": 4,
-    "includehidden": True,
-    "titles_only": False,
-}
+html_theme = "qiskit-ecosystem"
+html_title = f"{project} {release}"
 
 intersphinx_mapping = {
     "python": ("https://docs.python.org/3", None),
diff --git a/qiskit_nature/second_q/__init__.py b/qiskit_nature/second_q/__init__.py
index 61f406fde..3da850086 100644
--- a/qiskit_nature/second_q/__init__.py
+++ b/qiskit_nature/second_q/__init__.py
@@ -17,7 +17,7 @@
 .. currentmodule:: qiskit_nature.second_q
 
 Submodules
-==========
+----------
 
 .. autosummary::
    :toctree:
diff --git a/qiskit_nature/second_q/formats/__init__.py b/qiskit_nature/second_q/formats/__init__.py
index 2af599739..4fe38bb58 100644
--- a/qiskit_nature/second_q/formats/__init__.py
+++ b/qiskit_nature/second_q/formats/__init__.py
@@ -17,7 +17,7 @@
 .. currentmodule:: qiskit_nature.second_q.formats
 
 Submodules
-==========
+----------
 
 .. autosummary::
    :toctree:
diff --git a/qiskit_nature/second_q/hamiltonians/__init__.py b/qiskit_nature/second_q/hamiltonians/__init__.py
index af65135db..08dcc3d0d 100644
--- a/qiskit_nature/second_q/hamiltonians/__init__.py
+++ b/qiskit_nature/second_q/hamiltonians/__init__.py
@@ -26,7 +26,7 @@
    LatticeModel
 
 Submodules
-==========
+----------
 
 .. autosummary::
    :toctree:
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3191a59f9..57bbdf082 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -15,5 +15,5 @@ qiskit-aer>=0.11.2
 mypy>=0.991
 mypy-extensions>=0.4.3
 nbsphinx
-qiskit_sphinx_theme~=1.12.0
+qiskit_sphinx_theme~=1.16.0
 networkx>=2.2,<2.6