diff --git a/pkgs/development/interpreters/janet/default.nix b/pkgs/development/interpreters/janet/default.nix
index 52d0b371915..113a582392f 100644
--- a/pkgs/development/interpreters/janet/default.nix
+++ b/pkgs/development/interpreters/janet/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "janet";
-  version = "1.10.1";
+  version = "1.12.2";
 
   src = fetchFromGitHub {
     owner = "janet-lang";
     repo = pname;
     rev = "v${version}";
-    sha256 = "18k6dzxzr149p0bby4r0z6kybylig87rwj7gk3z6a98zf6k4xmsw";
+    sha256 = "0if514zdmbjvvrsa9x5yfvg2b14sz53yaka12g3yhwkq8ls3qk0c";
   };
 
   nativeBuildInputs = [ meson ninja ];