diff --git a/pyproject.toml b/pyproject.toml
index 5feeced9..3332935e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -48,6 +48,7 @@ dev = [
     "types-deprecated>=1.2.15.20241117",
     "types-pyyaml>=6.0.12.20241230",
     "types-toml>=0.10.8.20240310",
+    "xlsxwriter>=3.2.0",
 ]
 docs = [
     "autodoc-pydantic>=2.2.0",
@@ -57,7 +58,6 @@ docs = [
     "sphinx-design>=0.6.1",
     "sphinx-tabs>=3.4.7",
     "sphinxcontrib-bibtex>=2.6.3",
-    "xlsxwriter>=3.2.0",
 ]
 pybamm = [
     "pybamm>=24.1",
diff --git a/uv.lock b/uv.lock
index e990ccce..f6ecc063 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1875,6 +1875,7 @@ dev = [
     { name = "types-deprecated" },
     { name = "types-pyyaml" },
     { name = "types-toml" },
+    { name = "xlsxwriter" },
 ]
 docs = [
     { name = "autodoc-pydantic" },
@@ -1884,7 +1885,6 @@ docs = [
     { name = "sphinx-design" },
     { name = "sphinx-tabs" },
     { name = "sphinxcontrib-bibtex" },
-    { name = "xlsxwriter" },
 ]
 hvplot = [
     { name = "hvplot" },
@@ -1939,7 +1939,7 @@ requires-dist = [
     { name = "types-deprecated", marker = "extra == 'dev'", specifier = ">=1.2.15.20241117" },
     { name = "types-pyyaml", marker = "extra == 'dev'", specifier = ">=6.0.12.20241230" },
     { name = "types-toml", marker = "extra == 'dev'", specifier = ">=0.10.8.20240310" },
-    { name = "xlsxwriter", marker = "extra == 'docs'", specifier = ">=3.2.0" },
+    { name = "xlsxwriter", marker = "extra == 'dev'", specifier = ">=3.2.0" },
 ]
 
 [[package]]