diff --git a/.travis.yml b/.travis.yml
index 802f3229..d3b1f907 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ matrix:
         - php: 7.0
           env: COVERAGE=1
         - php: 5.3
-          env: COMPOSER_MEMORY_LIMIT=2G
+          env: COMPOSER_MEMORY_LIMIT=3G
         - php: 7.3
           env: DEPENDENCIES="--ignore-platform-reqs"
     exclude: