diff --git a/themes/hugo-kiera-master/layouts/partials/footer.html b/themes/hugo-kiera-master/layouts/partials/footer.html
index 69a5295..ab6367c 100644
--- a/themes/hugo-kiera-master/layouts/partials/footer.html
+++ b/themes/hugo-kiera-master/layouts/partials/footer.html
@@ -6,10 +6,11 @@
 	    </div>
 	    <div class="column-2">
 			<div class="social">
-                <a href="https://bsky.app/profile/omsf.io"><img src="/images/bluesky-icon.png"></a>
-				<a href="https://twitter.com/openmsf"><img src="/images/twitter-icon.png"></a>
-		    	<a href="mailto:info@omsf.io"><img src="/images/mail-icon.png"></a>
-		    	<a href="https://www.linkedin.com/company/omsf"><img src="/images/linkedin-icon.png"></a>
+                <a href="https://bsky.app/profile/omsf.io"><img src="/images/bluesky-icon.png" alt="Bluesky"></a>
+				<a href="https://x.com/openmsf" aria-label="X"><svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>X</title><circle cx="12" cy="12" r="12" fill="#000"/><path fill="#fff" transform="translate(4 4) scale(.6667)" d="M18.901 1.153h3.68l-8.04 9.19L24 22.846h-7.406l-5.8-7.584-6.638 7.584H.474l8.6-9.83L0 1.154h7.594l5.243 6.932ZM17.61 20.644h2.039L6.486 3.24H4.298Z"/></svg></a>
+				<a href="https://omsf.substack.com/" aria-label="Substack"><svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Substack</title><circle cx="12" cy="12" r="12" fill="#000"/><path fill="#fff" transform="translate(5 4) scale(.5833)" d="M22.539 8.242H1.46V5.406h21.08v2.836ZM1.46 10.812V24L12 18.11 22.539 24V10.812H1.46ZM22.539 0H1.46v2.836h21.08V0Z"/></svg></a>
+		    	<a href="mailto:info@omsf.io"><img src="/images/mail-icon.png" alt="Email"></a>
+		    	<a href="https://www.linkedin.com/company/omsf"><img src="/images/linkedin-icon.png" alt="LinkedIn"></a>
 			</div>
 			<div class="terms">
 				<a href="/resources/privacy-policy">Privacy Policy</a>
diff --git a/themes/hugo-kiera-master/static/css/agathe.css b/themes/hugo-kiera-master/static/css/agathe.css
index a73901a..2c12ad4 100644
--- a/themes/hugo-kiera-master/static/css/agathe.css
+++ b/themes/hugo-kiera-master/static/css/agathe.css
@@ -338,10 +338,14 @@ footer .column-2 {
     text-align: right;
     justify-content: end;
 }
-footer .social img {
+footer .social img,
+footer .social svg {
     width: 30px;
     margin-bottom: 1ch;
 }
+footer .social svg {
+    fill: currentColor;
+}
 footer .terms a {
     padding-left: 2ch;
 }