diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8b1e0be2..cd7099d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ## 1.7.5 (not yet released)
 * CHANGED: Simpler PostgreSQL table lookup query (#1361)
 * CHANGED: SRI hashes are now configurable, no longer hardcoded in templates (#1365)
+* CHANGED: Upgrading libraries to: DOMpurify 3.1.6
 
 ## 1.7.4 (2024-07-09)
 * CHANGED: Saving markdown pastes uses `.md` extension instead of `.txt` (#1293)
diff --git a/js/common.js b/js/common.js
index dfa218bf..3a7fba60 100644
--- a/js/common.js
+++ b/js/common.js
@@ -17,7 +17,7 @@ require('./prettify');
 global.prettyPrint = window.PR.prettyPrint;
 global.prettyPrintOne = window.PR.prettyPrintOne;
 global.showdown = require('./showdown-2.1.0');
-global.DOMPurify = require('./purify-3.1.3');
+global.DOMPurify = require('./purify-3.1.6');
 global.baseX = require('./base-x-4.0.0').baseX;
 global.Legacy = require('./legacy').Legacy;
 require('./bootstrap-3.4.1');
diff --git a/js/purify-3.1.3.js b/js/purify-3.1.3.js
deleted file mode 100644
index 7097ac50..00000000
--- a/js/purify-3.1.3.js
+++ /dev/null
@@ -1,2 +0,0 @@
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new file mode 100644
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diff --git a/lib/Configuration.php b/lib/Configuration.php
index 3e014dc8..df446233 100644
--- a/lib/Configuration.php
+++ b/lib/Configuration.php
@@ -110,7 +110,7 @@ class Configuration
             'js/legacy.js'           => 'sha512-LYos+qXHIRqFf5ZPNphvtTB0cgzHUizu2wwcOwcwz/VIpRv9lpcBgPYz4uq6jx0INwCAj6Fbnl5HoKiLufS2jg==',
             'js/prettify.js'         => 'sha512-puO0Ogy++IoA2Pb9IjSxV1n4+kQkKXYAEUtVzfZpQepyDPyXk8hokiYDS7ybMogYlyyEIwMLpZqVhCkARQWLMg==',
             'js/privatebin.js'       => 'sha512-cbmXvtZ/5gZPFjQDzP3IEhUAIhFPAoM31gw2kRYCT5xOh8wv9gXeDqI/t798luRW1xdC4gaYodjEFCzrsZR4mA==',
-            'js/purify-3.1.3.js'     => 'sha512-t/FKG/ucQVMWTWVouSMABSEx1r+uSyAI9eNDq0KEr9mPhkgxpJztHI/E72JIpv/+VwPs/Q4husxj14TE9Ps/wg==',
+            'js/purify-3.1.6.js'     => 'sha512-SDwfsqHZFhbcBo/6AN7Te4KoUkWHHw7TzyZCuRkkpl0o8oV4owT/lprznWWe9+qFtigb6MrF81K4CQRLN6be+A==',
             'js/rawinflate-0.3.js'   => 'sha512-g8uelGgJW9A/Z1tB6Izxab++oj5kdD7B4qC7DHwZkB6DGMXKyzx7v5mvap2HXueI2IIn08YlRYM56jwWdm2ucQ==',
             'js/showdown-2.1.0.js'   => 'sha512-WYXZgkTR0u/Y9SVIA4nTTOih0kXMEd8RRV6MLFdL6YU8ymhR528NLlYQt1nlJQbYz4EW+ZsS0fx1awhiQJme1Q==',
             'js/zlib-1.3.1.js'       => 'sha512-Z90oppVx/mn0DG2k9airjFVQuliELlXLeT3SRiO6MLiUSbhGlAq+UFwmYbG4i9mwW87dkG8fgJPapGwnUq7Osg==',
diff --git a/tpl/bootstrap.php b/tpl/bootstrap.php
index 9f266615..901bced7 100644
--- a/tpl/bootstrap.php
+++ b/tpl/bootstrap.php
@@ -71,7 +71,7 @@ if ($MARKDOWN) :
 <?php
 endif;
 ?>
-		<?php $this->_scriptTag('js/purify-3.1.3.js', 'async'); ?>
+		<?php $this->_scriptTag('js/purify-3.1.6.js', 'async'); ?>
 		<?php $this->_scriptTag('js/legacy.js', 'async'); ?>
 		<?php $this->_scriptTag('js/privatebin.js', 'defer'); ?>
 		<!-- icon -->
diff --git a/tpl/bootstrap5.php b/tpl/bootstrap5.php
index 64bb9677..298c1684 100644
--- a/tpl/bootstrap5.php
+++ b/tpl/bootstrap5.php
@@ -55,7 +55,7 @@ if ($MARKDOWN) :
 <?php
 endif;
 ?>
-		<?php $this->_scriptTag('js/purify-3.1.3.js', 'async'); ?>
+		<?php $this->_scriptTag('js/purify-3.1.6.js', 'async'); ?>
 		<?php $this->_scriptTag('js/legacy.js', 'async'); ?>
 		<?php $this->_scriptTag('js/privatebin.js', 'defer'); ?>
 		<!-- icon -->
diff --git a/tpl/page.php b/tpl/page.php
index 79bf482f..299e877b 100644
--- a/tpl/page.php
+++ b/tpl/page.php
@@ -49,7 +49,7 @@ if ($MARKDOWN):
 <?php
 endif;
 ?>
-		<?php $this->_scriptTag('js/purify-3.1.3.js', 'async'); ?>
+		<?php $this->_scriptTag('js/purify-3.1.6.js', 'async'); ?>
 		<?php $this->_scriptTag('js/legacy.js', 'async'); ?>
 		<?php $this->_scriptTag('js/privatebin.js', 'defer'); ?>
 		<!-- icon -->