diff --git a/content/add-to-config.md b/content/add-to-config.md
index cf679351..9a321274 100644
--- a/content/add-to-config.md
+++ b/content/add-to-config.md
@@ -76,7 +76,7 @@ Adding Lix to a flake-based configuration is relatively simple. First, add the L
     # which is often the case. If you've named it something else,
     # you'll need to change the `nixpkgs` below.
     lix-module = {
-      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1.tar.gz";
+      url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1-1.tar.gz";
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
@@ -187,8 +187,8 @@ section, and add the line provided in the configuration
       (let
         module = fetchTarball {
           name = "source";
-          url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1.tar.gz";
-          sha256 = "sha256-slp0zWHKvbCzhiBwwe6VX6jODEY+PKhHyiAoHgM5Bdc=";
+          url = "https://git.lix.systems/lix-project/nixos-module/archive/2.91.1-1.tar.gz";
+          sha256 = "sha256-6U0CyPycIBc04hbYy2hBINnVso58n/ZyywY2BD3hu+s=";
         };
         lixSrc = fetchTarball {
           name = "source";
diff --git a/content/add-to-config.md.in b/content/add-to-config.md.in
index b7034c50..0fae9066 100644
--- a/content/add-to-config.md.in
+++ b/content/add-to-config.md.in
@@ -51,7 +51,7 @@ You can verify that it works by running the following command:
 
 ```sh
 $ nix --version
-nix (Lix, like Nix) @VERSION@
+nix (Lix, like Nix) @VERSION_NOTRAIL@
 ```
 
 # Using the Lix NixOS module
@@ -153,7 +153,7 @@ You should now be using Lix! You can verify this by asking the `nix` command to
 
 ```sh
 $ nix --version
-nix (Lix, like Nix) @VERSION@
+nix (Lix, like Nix) @VERSION_NOTRAIL@
 ```
 
 As long as you see `Lix` in the output, you're good! If you're not sure what to do now, it's a
@@ -180,9 +180,9 @@ section, and add the line provided in the configuration
       #
       # The sha256 hashes were obtained with the following command in Lix (n.b.
       # this relies on --unpack, which is only in Lix and CppNix > 2.18):
-      # nix store prefetch-file --name source --unpack https://git.lix.systems/lix-project/lix/archive/@VERSION@.tar.gz
+      # nix store prefetch-file --name source --unpack https://git.lix.systems/lix-project/lix/archive/@VERSION_NOTRAIL@.tar.gz
       #
-      # Note that the tag (e.g. @VERSION@) in the URL here is what determines
+      # Note that the tag (e.g. @VERSION_NOTRAIL@) in the URL here is what determines
       # which version of Lix you'll wind up with.
       (let
         module = fetchTarball {
@@ -192,7 +192,7 @@ section, and add the line provided in the configuration
         };
         lixSrc = fetchTarball {
           name = "source";
-          url = "https://git.lix.systems/lix-project/lix/archive/@VERSION@.tar.gz";
+          url = "https://git.lix.systems/lix-project/lix/archive/@VERSION_NOTRAIL@.tar.gz";
           sha256 = "@LIX_ARCHIVE_HASH@";
         };
         # This is the core of the code you need; it is an exercise to the
@@ -230,7 +230,7 @@ You should now be using Lix! You can verify this by asking the `nix` command to
 
 ```sh
 $ nix --version
-nix (Lix, like Nix) @VERSION@
+nix (Lix, like Nix) @VERSION_NOTRAIL@
 ```
 
 As long as you see `Lix` in the output, you're good! If you're not sure what to do now, it's a
diff --git a/content/install.md.in b/content/install.md.in
index 8012e7a1..40abc113 100644
--- a/content/install.md.in
+++ b/content/install.md.in
@@ -78,7 +78,7 @@ Thanks to Nix, we can actually ask Lix to upgrade your system directly. Run the
 sudo --preserve-env=PATH nix run \
      --experimental-features "nix-command flakes" \
      --extra-substituters https://cache.lix.systems --extra-trusted-public-keys "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o=" \
-     'git+https://git.lix.systems/lix-project/lix?ref=refs/tags/@VERSION@' -- \
+     'git+https://git.lix.systems/lix-project/lix?ref=refs/tags/@VERSION_NOTRAIL@' -- \
      upgrade-nix \
      --extra-substituters https://cache.lix.systems --extra-trusted-public-keys "cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o="
 ```
@@ -88,7 +88,7 @@ to report its version:
 
 ```sh
 $ nix --version
-nix (Lix, like Nix) @VERSION@
+nix (Lix, like Nix) @VERSION_NOTRAIL@
 ```
 
 As long as you see `Lix` in the output, you're good! If you're not sure what to do now, it's a
diff --git a/update_version.py b/update_version.py
index f264d8ec..cf76cb74 100644
--- a/update_version.py
+++ b/update_version.py
@@ -29,9 +29,12 @@ def go(version: str):
         Path('./content/install.md')
     ]
 
+    version_notrail = version.partition('-')[0]
+
     substitutions = {
+        '@VERSION_NOTRAIL@': version_notrail,
         '@VERSION@': version,
-        '@LIX_ARCHIVE_HASH@': get_archive_hash(BASE_URL + f'/lix-project/lix/archive/{version}.tar.gz'),
+        '@LIX_ARCHIVE_HASH@': get_archive_hash(BASE_URL + f'/lix-project/lix/archive/{version_notrail}.tar.gz'),
         '@NIXOS_MODULE_HASH@': get_archive_hash(BASE_URL + f'/lix-project/nixos-module/archive/{version}.tar.gz'),
     }