diff --git a/lib/core.js b/lib/core.js
index a56d921..0799cf4 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -111,7 +111,10 @@ function writeRenewalConfig(args) {
   return mkdirpAsync(path.dirname(args.renewalPath)).then(function () {
     return pyconf.writeFileAsync(args.renewalPath, pyobj);
   }).then(function () {
-    return pyobj;
+    // NOTE
+    // writing twice seems to causes a bug,
+    // so instead we re-read the file from the disk
+    return pyconf.readFileAsync(args.renewalPath);
   });
 }
 
diff --git a/package.json b/package.json
index c3bde47..7afdc1d 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "homedir": "^0.6.0",
     "letiny-core": "^1.0.3",
     "mkdirp": "^0.5.1",
-    "pyconf": "^1.1.0",
+    "pyconf": "^1.1.2",
     "request": "^2.67.0",
     "safe-replace": "^1.0.2"
   }