diff --git a/.gitmodules b/.gitmodules
index ff203b53100..89f986ebdf7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -10,3 +10,6 @@
 [submodule "e2e-tests/chromedriver"]
 	path = e2e-tests/chromedriver
 	url = https://github.com/geonetwork/chromedriver.git
+[submodule "web-ui/src/main/resources/catalog/lib/style/bootstrap"]
+	path = web-ui/src/main/resources/catalog/lib/style/bootstrap
+	url = git@github.com:twbs/bootstrap.git
diff --git a/web-ui/src/main/resources/catalog/lib/style/bootstrap b/web-ui/src/main/resources/catalog/lib/style/bootstrap
new file mode 160000
index 00000000000..a365d8689c3
--- /dev/null
+++ b/web-ui/src/main/resources/catalog/lib/style/bootstrap
@@ -0,0 +1 @@
+Subproject commit a365d8689c3f3cee7f1acf86b61270ecca8e106d