diff --git a/admin/cmds/lock-versions.js b/admin/cmds/lock-versions.js
new file mode 100644
index 000000000..81a1274f7
--- /dev/null
+++ b/admin/cmds/lock-versions.js
@@ -0,0 +1,41 @@
+"use strict";
+
+const { getOrdered, loadPackage } = require("../depgraph");
+const { savePackage } = require("../local");
+const { log } = require("../log");
+
+(async function() {
+    let versions = { };
+
+    const dirnames = getOrdered();
+
+    dirnames.forEach((dirname) => {
+        let info = loadPackage(dirname);
+        if (info.name.split("/")[0] === "@ethersproject" || info.name === "ethers") {
+            versions[info.name] = info.version;
+        }
+    });
+
+    dirnames.forEach((dirname) => {
+        const info = loadPackage(dirname);
+        let shown = false;
+        ["dependencies", "devDependencies"].forEach((key) => {
+            const deps = info[key];
+            if (!deps) { return; }
+            Object.keys(deps).forEach((name) => {
+                if (versions[name] == null) { return; }
+                const value = ">=" + versions[name];
+                if (value !== deps[name])
+                if (!deps[name]) { return; }
+                if (!shown) {
+                    log(`<bold:Locking ${ info.name }:>`);
+                    shown = true;
+                }
+                log(`    <green:${ name }>: ${ deps[name] } => <bold:${ value.substring(2) }>`);
+                deps[name] = value;
+            });
+        });
+        savePackage(dirname, info);
+    });
+
+})();
diff --git a/admin/cmds/update-versions.js b/admin/cmds/update-versions.js
index e7031847e..9c245e219 100644
--- a/admin/cmds/update-versions.js
+++ b/admin/cmds/update-versions.js
@@ -51,14 +51,6 @@ if (process.argv.length > 2) {
 
         // Get local package.json (update the tarballHash)
         let info = await updatePackage(dirname);
-        /*
-        let info = await updatePackage(dirname, {
-            repository: {
-                type: "git",
-                url: "git://github.com/ethers-io/ethers.js.git"
-            }
-        });
-        */
 
         // Get the remote package.json (or sub in a placeholder for new pacakges)
         let npmInfo = await getPackageVersion(info.name);