diff --git a/pkgs/development/interpreters/erlang/R23.nix b/pkgs/development/interpreters/erlang/R23.nix
index 8fc7d8feac80..cfd508b851f6 100644
--- a/pkgs/development/interpreters/erlang/R23.nix
+++ b/pkgs/development/interpreters/erlang/R23.nix
@@ -3,6 +3,6 @@
 # How to obtain `sha256`:
 # nix-prefetch-url --unpack https://github.com/erlang/otp/archive/OTP-${version}.tar.gz
 mkDerivation {
-  version = "23.3.4";
-  sha256 = "EKewwcK1Gr84mmFVxVmOLaPiFtsG3r/1ubGOUwM/EYY=";
+  version = "23.3.4.1";
+  sha256 = "vBGPCAq7410ykiWsxDo6PpgnInPMY35+RPx4gl/BW7k=";
 }