diff --git a/erlang.json b/erlang.json
index 7ea1837de5..21b9ff6bbd 100644
--- a/erlang.json
+++ b/erlang.json
@@ -1,15 +1,15 @@
 {
     "homepage": "https://www.erlang.org",
-    "version": "21.0",
+    "version": "21.1",
     "license": "Apache-2.0",
     "architecture": {
         "64bit": {
-            "url": "http://erlang.org/download/otp_win64_21.0.exe",
-            "hash": "d1e6a4df59289a6e38e734bcc701da4f1ae7246a885ce75c1d1097895200c22a"
+            "url": "http://erlang.org/download/otp_win64_21.1.exe",
+            "hash": "170c44850a3e4f0a5b510653b500f7a7b99337fbfb38d19a745f38869baa23a5"
         },
         "32bit": {
-            "url": "http://erlang.org/download/otp_win32_21.0.exe",
-            "hash": "7b40977cb6bd47f7af27c42d5b70f55db1b1c9b3e85fc95110345be61c3c930a"
+            "url": "http://erlang.org/download/otp_win32_21.1.exe",
+            "hash": "9c8a48f6622325124795563a7d848f9d03bb3b9b011226886326245c05ffd92e"
         }
     },
     "bin": [