diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
index 3ccca1e8b89bc..413b31282f7c9 100644
--- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
+++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version
@@ -1 +1 @@
-0.16.5
\ No newline at end of file
+0.16.6
\ No newline at end of file
diff --git a/tests/rustdoc-gui/sidebar-mobile.goml b/tests/rustdoc-gui/sidebar-mobile.goml
index 3b022c7e9d040..4b8337ace3a2f 100644
--- a/tests/rustdoc-gui/sidebar-mobile.goml
+++ b/tests/rustdoc-gui/sidebar-mobile.goml
@@ -73,16 +73,16 @@ define-function: (
 
 call-function: ("check-colors", {
     "theme": "ayu",
-    "color": "rgb(197, 197, 197)",
-    "background": "rgb(20, 25, 31)",
+    "color": "#c5c5c5",
+    "background": "#14191f",
 })
 call-function: ("check-colors", {
     "theme": "dark",
-    "color": "rgb(221, 221, 221)",
-    "background": "rgb(80, 80, 80)",
+    "color": "#ddd",
+    "background": "#505050",
 })
 call-function: ("check-colors", {
     "theme": "light",
-    "color": "rgb(0, 0, 0)",
-    "background": "rgb(245, 245, 245)",
+    "color": "black",
+    "background": "#F5F5F5",
 })