diff --git a/pkgs/development/compilers/factor-lang/0.100.nix b/pkgs/development/compilers/factor-lang/0.100.nix
new file mode 100644
index 000000000000..64751dad76a9
--- /dev/null
+++ b/pkgs/development/compilers/factor-lang/0.100.nix
@@ -0,0 +1,9 @@
+{ callPackage, fetchurl }:
+
+callPackage ./unwrapped.nix (rec {
+  version = "0.100";
+  src = fetchurl {
+    url = "https://downloads.factorcode.org/releases/${version}/factor-src-${version}.zip";
+    hash = "sha256-ei1x6mgEoDVe1mKfoWSGC9RgZCONovAPYfIdAlOGi+0=";
+  };
+})
diff --git a/pkgs/development/compilers/factor-lang/0.99.nix b/pkgs/development/compilers/factor-lang/0.99.nix
new file mode 100644
index 000000000000..88c234213af9
--- /dev/null
+++ b/pkgs/development/compilers/factor-lang/0.99.nix
@@ -0,0 +1,9 @@
+{ callPackage, fetchurl }:
+
+callPackage ./unwrapped.nix (rec {
+  version = "0.99";
+  src = fetchurl {
+    url = "https://downloads.factorcode.org/releases/${version}/factor-src-${version}.zip";
+    sha256 = "f5626bb3119bd77de9ac3392fdbe188bffc26557fab3ea34f7ca21e372a8443e";
+  };
+})
diff --git a/pkgs/development/compilers/factor-lang/unwrapped.nix b/pkgs/development/compilers/factor-lang/unwrapped.nix
index 8d7b6dae6661..a8b733a0a2bd 100644
--- a/pkgs/development/compilers/factor-lang/unwrapped.nix
+++ b/pkgs/development/compilers/factor-lang/unwrapped.nix
@@ -8,16 +8,16 @@
   ncurses,
   tzdata,
   unzip,
+
+  # Version-specific attributes
+  version,
+  src,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "factor-lang";
-  version = "0.99";
 
-  src = fetchurl {
-    url = "https://downloads.factorcode.org/releases/${finalAttrs.version}/factor-src-${finalAttrs.version}.zip";
-    sha256 = "f5626bb3119bd77de9ac3392fdbe188bffc26557fab3ea34f7ca21e372a8443e";
-  };
+  inherit src version;
 
   patches = [
     # Use full path to image while bootstrapping
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2a732d145d65..ccc01130c6bb 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -9272,8 +9272,17 @@ with pkgs;
     inherit (darwin.apple_sdk.frameworks) Carbon OpenGL;
   };
 
-  factorPackages = callPackage ./factor-packages.nix { };
-  factor-lang = factorPackages.factor-lang;
+  factorPackages-0_99 = callPackage ./factor-packages.nix {
+    factor-unwrapped = callPackage ../development/compilers/factor-lang/0.99.nix { };
+  };
+  factorPackages-0_100 = callPackage ./factor-packages.nix {
+    factor-unwrapped = callPackage ../development/compilers/factor-lang/0.100.nix { };
+  };
+  factorPackages = factorPackages-0_100;
+
+  factor-lang-0_99 = factorPackages-0_99.factor-lang;
+  factor-lang-0_100 = factorPackages-0_100.factor-lang;
+  factor-lang = factor-lang-0_100;
 
   far2l = callPackage ../applications/misc/far2l {
     inherit (darwin.apple_sdk.frameworks)
diff --git a/pkgs/top-level/factor-packages.nix b/pkgs/top-level/factor-packages.nix
index eae05e694130..5ddc4ad86599 100644
--- a/pkgs/top-level/factor-packages.nix
+++ b/pkgs/top-level/factor-packages.nix
@@ -1,6 +1,7 @@
 {
   lib,
   pkgs,
+  factor-unwrapped,
   overrides ? (self: super: { }),
 }:
 
@@ -17,7 +18,7 @@ let
           { };
       buildFactorVocab = callPackage ../development/compilers/factor-lang/mk-vocab.nix { };
 
-      factor-unwrapped = callPackage ../development/compilers/factor-lang/unwrapped.nix { };
+      inherit factor-unwrapped;
 
       factor-lang = callPackage ../development/compilers/factor-lang/wrapper.nix { };
       factor-no-gui = callPackage ../development/compilers/factor-lang/wrapper.nix {