diff --git a/sed/switcher.json b/sed/switcher.json
index 5ff8c12..3e78600 100644
--- a/sed/switcher.json
+++ b/sed/switcher.json
@@ -1,7 +1,6 @@
 [
     {
         "name": "latest",
-        "version": "0.1.10a6",
         "url": "https://opencompes.github.io/docs/sed/latest"
     },
     {
diff --git a/sed/update_switcher.py b/sed/update_switcher.py
new file mode 100644
index 0000000..dfb3df7
--- /dev/null
+++ b/sed/update_switcher.py
@@ -0,0 +1,55 @@
+import json
+import sys
+
+if len(sys.argv) != 3:
+    sys.exit("Usage: update_switcher.py json_file GITHUB_REF")
+
+switcher_file = sys.argv[1]
+branch = sys.argv[2]
+
+present = False
+with open(switcher_file, encoding="utf-8") as f:
+    data = json.load(f)
+    if branch.startswith("refs/tags"):  # add a new version tag
+        version = branch.split("/")[-1]
+        for item in data:
+            if version in item.get("name", ""):
+                present = True
+            if "stable" in item.get("name", ""):
+                item["version"] = version[1:]
+                item["url"] = "https://opencompes.github.io/docs/sed/" + version
+        if not present:
+            new_entry = {}
+            new_entry["name"] = version
+            new_entry["version"] = version[1:]
+            new_entry["url"] = "https://opencompes.github.io/docs/sed/" + version
+            data.append(new_entry)
+
+    elif branch == "refs/heads/main":  # update latest
+        for item in data:
+            if "latest" in item.get("name", ""):
+                present = True
+                break
+        if not present:
+            new_entry = {}
+            new_entry["name"] = "latest"
+            new_entry["url"] = "https://opencompes.github.io/docs/sed/latest"
+            data.append(new_entry)
+
+    else:  # update develop
+        for item in data:
+            if "develop" in item.get("name", ""):
+                present = True
+                item["version"] = branch.split("/")[-1]
+                break
+        if not present:
+            new_entry = {}
+            new_entry["name"] = "develop"
+            new_entry["version"] = branch.split("/")[-1]
+            new_entry["url"] = "https://opencompes.github.io/docs/sed/develop"
+            data.append(new_entry)
+
+    print(data)
+
+    with open(switcher_file, mode="w", encoding="utf-8") as f:
+        json.dump(data, f, indent=2)