diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 14a62e6..c3c7945 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = v1.0.3
+current_version = v1.0.4
 commit = True
 tag = True
 parse = (v(?P<major>\d+))(.(?P<minor>\d+))(.(?P<patch>\d+))
diff --git a/CITATION.cff b/CITATION.cff
index 0c3eb61..81f5f3d 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -10,7 +10,7 @@ authors:
     affiliation: The Alan Turing Institute
   - name: "This EDS book notebook contributors"
     website: "https://github.com/eds-book-gallery/ac327c3a-5264-40a2-8c6e-1e8d7c4b37ef/graphs/contributors"
-version: v1.0.3 # This is automatically set using the bumpversion tool.
+version: v1.0.4 # This is automatically set using the bumpversion tool.
 identifiers:
   - type: doi
     value: 10.5281/zenodo.8311332
diff --git a/notebook.ipynb b/notebook.ipynb
index 981299e..c964135 100644
--- a/notebook.ipynb
+++ b/notebook.ipynb
@@ -1205,7 +1205,7 @@
    "source": [
     "from datetime import date\n",
     "\n",
-    "print('Notebook repository version: v1.0.3')\n",
+    "print('Notebook repository version: v1.0.4')\n",
     "print(f'Last tested: {date.today()}')"
    ]
   },