diff --git a/pkgs/development/interpreters/erlang/R22.nix b/pkgs/development/interpreters/erlang/R22.nix
index 8b471f632471..88fe21453a82 100644
--- a/pkgs/development/interpreters/erlang/R22.nix
+++ b/pkgs/development/interpreters/erlang/R22.nix
@@ -1,8 +1,10 @@
 { mkDerivation }:
 
+# How to obtain `sha256`:
+# nix-prefetch-url --unpack https://github.com/erlang/otp/archive/OTP-${version}.tar.gz
 mkDerivation {
-  version = "22.0.4";
-  sha256 = "1aqkhd6nwdn4xp5yz02zbymd4x8ij8fjw9ji8kh860n1a513k9ai";
+  version = "22.1.7";
+  sha256 = "18aqy2s8nqd82v4lzzxknrwjva8mv1y2hvai9cakz5nkyd3vwq62";
 
   prePatch = ''
     substituteInPlace make/configure.in --replace '`sw_vers -productVersion`' "''${MACOSX_DEPLOYMENT_TARGET:-10.12}"