diff --git a/serving/client_requirements.txt b/serving/client_requirements.txt
index 608f2d8..8039c2f 100644
--- a/serving/client_requirements.txt
+++ b/serving/client_requirements.txt
@@ -18,7 +18,7 @@ functools32==3.2.3.post2
 futures==3.2.0
 gast==0.2.0
 grpcio==1.12.1
-html5lib==0.9999999
+html5lib==0.999999999
 idna==2.6
 ipykernel==4.8.2
 ipython==5.7.0
diff --git a/serving/serving_requirements.txt b/serving/serving_requirements.txt
index 5604e95..331033e 100644
--- a/serving/serving_requirements.txt
+++ b/serving/serving_requirements.txt
@@ -3,7 +3,7 @@ astor==0.6.2
 bleach==1.5.0
 gast==0.2.0
 grpcio==1.12.1
-html5lib==0.9999999
+html5lib==0.999999999
 Markdown==2.6.11
 numpy==1.14.3
 protobuf==3.5.2.post1