diff --git a/ci/doc_requirements.txt b/ci/doc_requirements.txt
index c51eb17063f..5024ae2da26 100644
--- a/ci/doc_requirements.txt
+++ b/ci/doc_requirements.txt
@@ -1,5 +1,5 @@
 sphinx==7.3.7
-pydata-sphinx-theme==0.15.2
+pydata-sphinx-theme==0.15.4
 sphinx-design==0.6.1
 sphinx-gallery==0.17.1
 myst-parser==4.0.0
diff --git a/docs/_static/theme-unidata.css b/docs/_static/theme-unidata.css
index 8e538d7bc2c..483ac5b8fe2 100644
--- a/docs/_static/theme-unidata.css
+++ b/docs/_static/theme-unidata.css
@@ -19,7 +19,7 @@ html {
 
 .bd-header .navbar-nav>.nav-item>.nav-link, 
 .bd-header .dropdown-toggle,
-.bd-header .fa-solid,
+.bd-header .pst-navbar-icon,
 .bd-header .btn {
     color: #fff !important;
  }