diff --git a/.github/workflows/zenodo.py b/.github/workflows/zenodo.py
index ca62973..b067029 100644
--- a/.github/workflows/zenodo.py
+++ b/.github/workflows/zenodo.py
@@ -35,6 +35,18 @@ def deposit(zenodo_url, access_token, dep_id, upload_file, meta):
 
     print("New deposition ID: {}".format(dep_id))
 
+    # Delete previous files (all current)
+    # Get list of files
+    url = '{}/{}/files'.format(urlbase, dep_id)
+    r = requests.get(url, params=params)
+    if r.status_code != 200:
+        raise RuntimeError('GET {} failed: {}'.format(url, r.status_code))
+    print(f'Existing files: {r.json()}')
+
+    for files in r.json():
+        url = '{}/{}/files/{}'.format(urlbase, dep_id, files['id'])
+        r = requests.delete(url, params=params)
+
     # Upload the file
     data   = {'filename': op.basename(upload_file)}
     files  = {'file': open(upload_file, 'rb')}
diff --git a/build_specification/build_specification_pdf b/build_specification/build_specification_pdf
index 03b5de3..1deb2a2 100755
--- a/build_specification/build_specification_pdf
+++ b/build_specification/build_specification_pdf
@@ -1,4 +1,4 @@
 #!/bin/bash
 version=`git tag`
-echo "${version/./_}"
-pandoc specification.MD -t html -o - | pandoc -f html --pdf-engine=xelatex -V geometry:margin=1in -V mainfont:Roboto -o "nifti_mrs_specification_${version/./_}.pdf"
\ No newline at end of file
+echo "${version//./_}"
+pandoc specification.MD -t html -o - | pandoc -f html --pdf-engine=xelatex -V geometry:margin=1in -V mainfont:Roboto -o "nifti_mrs_specification_${version//./_}.pdf"
\ No newline at end of file