diff --git a/pkgs/development/interpreters/erlang/R23.nix b/pkgs/development/interpreters/erlang/R23.nix
index 9e344adc15a3..3d0a2b160065 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 = "23.3.4.4";
-  sha256 = "dnoSGfBUZrgcnNQNAoqmVOxK/NQlt1DC187sxg7mPq8=";
+  version = "23.3.4.5";
+  sha256 = "2u/w8IPKHEZ+rZ3T7Wn9+Ggxe6JY8cHz8q/N0RjbrNU=";
 }