diff --git a/requirements_py27_dev.txt b/requirements_py27_dev.txt
index 1a293f4..67a1e2e 100644
--- a/requirements_py27_dev.txt
+++ b/requirements_py27_dev.txt
@@ -7,7 +7,7 @@ Babel==2.3.4
 backports-abc==0.5
 backports.functools-lru-cache==1.3
 backports.shutil-get-terminal-size==1.0.0
-bleach==1.5.0
+bleach==3.3.0
 bottle==0.12.13
 certifi==2017.1.23
 configparser==3.5.0
diff --git a/requirements_py3_dev.txt b/requirements_py3_dev.txt
index d1c99f0..8aa55ac 100644
--- a/requirements_py3_dev.txt
+++ b/requirements_py3_dev.txt
@@ -6,7 +6,7 @@ astroid==1.4.9
 Babel==2.3.4
 backports-abc==0.5
 backports.shutil-get-terminal-size==1.0.0
-bleach==1.5.0
+bleach==3.3.0
 bottle==0.12.13
 certifi==2017.1.23
 configparser==3.5.0