diff --git a/.hhconfig b/.hhconfig
index 4c1296a..56ebb8d 100644
--- a/.hhconfig
+++ b/.hhconfig
@@ -12,4 +12,4 @@ disable_lval_as_an_expression = true
 new_inference_lambda = true
 error_php_lambdas = true
 allowed_decl_fixme_codes=2053,4045,4047
-allowed_fixme_codes_strict=2011,2049,2050,2053,2083,3004,3084,4027,4045,4047,4104,4106,4108,4110,4119,4128,4135,4188,4223,4240,4248,4323,4200
+allowed_fixme_codes_strict=2011,2049,2050,2053,2083,3004,3084,4027,4045,4047,4104,4106,4107,4108,4110,4119,4128,4135,4188,4223,4240,4248,4323,4200
diff --git a/.travis.yml b/.travis.yml
index 05f5dfb..ec5cd55 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,7 @@ env:
     - DOCKER_COMPOSE_VERSION=1.25.1
   matrix:
     - HHVM_VERSION=4.62.0
+    - HHVM_VERSION=4.64.0
     - HHVM_VERSION=latest
 before_install:
 - sudo rm /usr/local/bin/docker-compose