diff --git a/docs/docs/configuration/themes.md b/docs/docs/configuration/themes.md
index 005b348..0a71aa4 100644
--- a/docs/docs/configuration/themes.md
+++ b/docs/docs/configuration/themes.md
@@ -33,6 +33,17 @@ Right-click on the images and select "Open image in new tab" to see the full siz
   </TabItem>
 </Tabs>
 
+## `litera`
+
+<Tabs>
+  <TabItem value="light" label="Light" default>
+    <Image img={require("../../static/img/litera_light.png")} />
+  </TabItem>
+  <TabItem value="dark" label="Dark">
+    <Image img={require("../../static/img/litera_dark.png")} />
+  </TabItem>
+</Tabs>
+
 ## `cerulean`
 
 <Tabs>
diff --git a/docs/static/img/litera_dark.png b/docs/static/img/litera_dark.png
new file mode 100644
index 0000000..30e022e
Binary files /dev/null and b/docs/static/img/litera_dark.png differ
diff --git a/docs/static/img/litera_light.png b/docs/static/img/litera_light.png
new file mode 100644
index 0000000..e123452
Binary files /dev/null and b/docs/static/img/litera_light.png differ
diff --git a/src/index.php b/src/index.php
index 67c656f..587525d 100644
--- a/src/index.php
+++ b/src/index.php
@@ -1,6 +1,6 @@
 <?php
 
-define('VERSION', '1.3.3');
+define('VERSION', '1.4.0');
 
 define('PUBLIC_FOLDER', __DIR__ . '/public');
 
@@ -155,6 +155,8 @@ public function __toString(): string
   <link href="https://cdn.jsdelivr.net/npm/bootswatch@5.2.3/dist/united/bootstrap.min.css" rel="stylesheet">
   $[ifeq env:THEME yeti]$
   <link href="https://cdn.jsdelivr.net/npm/bootswatch@5.2.3/dist/yeti/bootstrap.min.css" rel="stylesheet">
+  $[ifeq env:THEME litera]$
+  <link href="https://cdn.jsdelivr.net/npm/bootswatch@5.2.3/dist/litera/bootstrap.min.css" rel="stylesheet">
   $[else]$
   <link href="https://cdn.jsdelivr.net/npm/bootswatch@5.2.3/dist/cosmo/bootstrap.min.css" rel="stylesheet">
   $[end]$