diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a025a93..abeb79e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -6,7 +6,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - run: echo ${GITHUB_REF#refs/heads/}
-    - run: echo "version=$(git rev-parse --short $GITHUB_SHA)" >> $GITHUB_ENV
+    - run: echo "version=$(./script/update_version.py)" >> $GITHUB_ENV
     - run: ./script/build.sh
     - uses: actions/upload-artifact@v2
       with:
diff --git a/script/update_version.py b/script/update_version.py
new file mode 100755
index 0000000..2355dd6
--- /dev/null
+++ b/script/update_version.py
@@ -0,0 +1,33 @@
+#! /usr/bin/env python3
+
+import os, re, subprocess, sys
+
+def version():
+  desc = subprocess.check_output(["git", "describe", "--tags"], cwd = os.path.dirname(__file__)).decode("utf-8") 
+  match = re.match(r"([0-9]+)\.([0-9]+)-([0-9]+)-([a-z0-9]+)", desc)
+  if match:
+    major = int(match.group(1))
+    minor = int(match.group(2)) + int(match.group(3))
+    sha = match.group(4)
+    return (major, minor, sha)
+  else:
+    raise Exception("Can’t parse version from: " + desc)
+
+def update_version(major, minor, src, dst):
+  with open(src, 'r') as f:
+    contents = f.read()
+  contents = re.sub(r"versionMajor\s+=\s+\d+;",
+                    f"versionMajor = {major};",
+                    contents)
+  contents = re.sub(r"versionMinor\s+=\s+\d+;",
+                    f"versionMinor = {minor};",
+                    contents)
+  with open(dst, 'w') as f:
+    f.write(contents)
+
+if __name__ == '__main__':
+  os.chdir(os.path.abspath(os.path.dirname(__file__) + '/..'))
+  (major, minor, sha) = version()
+  update_version(major, minor, 'FiraCode.glyphs', 'FiraCode.glyphs')
+  print(f"{major}.{minor}-{sha}")
+  sys.exit(0)
\ No newline at end of file
diff --git a/script/version.py b/script/version.py
deleted file mode 100755
index 5ced59e..0000000
--- a/script/version.py
+++ /dev/null
@@ -1,18 +0,0 @@
-#! /usr/bin/env python3
-
-import os, re, subprocess, sys
-
-def revision():
-  os.chdir(os.path.abspath(os.path.dirname(__file__) + '/..'))
-  desc = subprocess.check_output(["git", "describe", "--tags"], cwd = os.path.dirname(__file__)).decode("utf-8") 
-  match = re.match("([0-9.]+)-([0-9]+)-[a-z0-9]+", desc)
-  if match:
-    return match.group(1) + "." + match.group(2)
-  match = re.match("([0-9]+.[0-9]+).0", desc)
-  if match:
-    return match.group(1) + ".0"
-  raise Exception("Can’t parse revision: " + desc)
-
-if __name__ == '__main__':
-  print(revision())
-  sys.exit(0)
\ No newline at end of file