diff --git a/missense_kinase_toolkit/databases/poetry.lock b/missense_kinase_toolkit/databases/poetry.lock
index b866d8e..a76fa82 100644
--- a/missense_kinase_toolkit/databases/poetry.lock
+++ b/missense_kinase_toolkit/databases/poetry.lock
@@ -892,6 +892,17 @@ files = [
     {file = "docutils-0.20.1.tar.gz", hash = "sha256:f08a4e276c3a1583a86dce3e34aba3fe04d02bba2dd51ed16106244e8a923e3b"},
 ]
 
+[[package]]
+name = "et-xmlfile"
+version = "2.0.0"
+description = "An implementation of lxml.xmlfile for the standard library"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "et_xmlfile-2.0.0-py3-none-any.whl", hash = "sha256:7a91720bc756843502c3b7504c77b8fe44217c85c537d85037f0f536151b2caa"},
+    {file = "et_xmlfile-2.0.0.tar.gz", hash = "sha256:dab3f4764309081ce75662649be815c4c9081e88f0837825f90fd28317d4da54"},
+]
+
 [[package]]
 name = "exceptiongroup"
 version = "1.2.2"
@@ -2415,6 +2426,20 @@ files = [
     {file = "numpy-2.0.2.tar.gz", hash = "sha256:883c987dee1880e2a864ab0dc9892292582510604156762362d9326444636e78"},
 ]
 
+[[package]]
+name = "openpyxl"
+version = "3.1.5"
+description = "A Python library to read/write Excel 2010 xlsx/xlsm files"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "openpyxl-3.1.5-py2.py3-none-any.whl", hash = "sha256:5282c12b107bffeef825f4617dc029afaf41d0ea60823bbb665ef3079dc79de2"},
+    {file = "openpyxl-3.1.5.tar.gz", hash = "sha256:cf0e3cf56142039133628b5acffe8ef0c12bc902d2aadd3e0fe5878dc08d1050"},
+]
+
+[package.dependencies]
+et-xmlfile = "*"
+
 [[package]]
 name = "overrides"
 version = "7.7.0"
@@ -4304,4 +4329,4 @@ testing = ["coverage (>=5.0.3)", "zope.event", "zope.testing"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<4.0"
-content-hash = "1d2dd5175df2e84382d0e4a8b9fb9dd763e771a8b1db385df6ead2b90a9a28fc"
+content-hash = "9616cf6ef3041e08facc1b8311ae230538d8013c3aa128effc7fa868f7dc3b69"
diff --git a/missense_kinase_toolkit/databases/pyproject.toml b/missense_kinase_toolkit/databases/pyproject.toml
index ec67f71..bba16b2 100644
--- a/missense_kinase_toolkit/databases/pyproject.toml
+++ b/missense_kinase_toolkit/databases/pyproject.toml
@@ -38,6 +38,7 @@ scipy = "^1.13.1"
 matplotlib-venn = "^1.1.1"
 pyhmmer = "^0.10.15"
 biotite = "^1.0.1"
+openpyxl = "^3.1.5"
 
 [tool.poetry.group.dev.dependencies]
 black = "^24.3.0"