diff --git a/ui5.yaml b/ui5.yaml
index f338c705e..adbb63e6a 100644
--- a/ui5.yaml
+++ b/ui5.yaml
@@ -9,7 +9,7 @@ framework:
     - name: sap.f
     - name: sap.m
     - name: sap.ui.core
-    - name: themelib_sap_fiori_3
+    - name: themelib_sap_horizon
 server:
   customMiddleware:
     - name: "@ui5/middleware-code-coverage"
diff --git a/webapp/index.html b/webapp/index.html
index 646816e7e..a7b332f46 100644
--- a/webapp/index.html
+++ b/webapp/index.html
@@ -9,7 +9,7 @@
 		src="resources/sap-ui-core.js"
 		data-sap-ui-libs="sap.m"
 		data-sap-ui-xx-waitForTheme="true"
-		data-sap-ui-theme="sap_fiori_3"
+		data-sap-ui-theme="sap_horizon"
 		data-sap-ui-resourceRoots='{
 			"sap.ui.demo.todo": "./"
 		}'
diff --git a/webapp/test/integration/opaTests.qunit.html b/webapp/test/integration/opaTests.qunit.html
index 986567ced..4e40c4eca 100644
--- a/webapp/test/integration/opaTests.qunit.html
+++ b/webapp/test/integration/opaTests.qunit.html
@@ -6,7 +6,7 @@
 
 	<script id="sap-ui-bootstrap"
 		src="../../resources/sap-ui-core.js"
-		data-sap-ui-theme="sap_fiori_3"
+		data-sap-ui-theme="sap_horizon"
 		data-sap-ui-resourceroots='{
 			"sap.ui.demo.todo": "../../"
 		}'
diff --git a/webapp/test/unit/unitTests.qunit.html b/webapp/test/unit/unitTests.qunit.html
index 0c9584cec..3fc5e2b5e 100644
--- a/webapp/test/unit/unitTests.qunit.html
+++ b/webapp/test/unit/unitTests.qunit.html
@@ -6,7 +6,7 @@
 
 	<script id="sap-ui-bootstrap"
 		src="../../resources/sap-ui-core.js"
-		data-sap-ui-theme="sap_fiori_3"
+		data-sap-ui-theme="sap_horizon"
 		data-sap-ui-resourceroots='{
 			"sap.ui.demo.todo": "../../"
 		}'