diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_chrome.txt b/testing/web-platform/tests/tools/wptrunner/requirements_chrome.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_chrome.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_chrome.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_chrome_android.txt b/testing/web-platform/tests/tools/wptrunner/requirements_chrome_android.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_chrome_android.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_chrome_android.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_edge.txt b/testing/web-platform/tests/tools/wptrunner/requirements_edge.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_edge.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_edge.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_ie.txt b/testing/web-platform/tests/tools/wptrunner/requirements_ie.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_ie.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_ie.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_opera.txt b/testing/web-platform/tests/tools/wptrunner/requirements_opera.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_opera.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_opera.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_safari.txt b/testing/web-platform/tests/tools/wptrunner/requirements_safari.txt
index e2098cf59da4..b5e48068722e 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_safari.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_safari.txt
@@ -1,2 +1,2 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
diff --git a/testing/web-platform/tests/tools/wptrunner/requirements_sauce.txt b/testing/web-platform/tests/tools/wptrunner/requirements_sauce.txt
index c076d75bac76..e0ae7e262c5f 100644
--- a/testing/web-platform/tests/tools/wptrunner/requirements_sauce.txt
+++ b/testing/web-platform/tests/tools/wptrunner/requirements_sauce.txt
@@ -1,3 +1,3 @@
 mozprocess == 0.26
-selenium==3.10.0
+selenium==3.11.0
 requests==2.18.4