diff --git a/.travis.yml b/.travis.yml
index 6df9112944..52577bbd03 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -186,16 +186,18 @@ after_script:
   fi
 - cd ..
 - if [[ $LEANREPO == BLESSED && $BUILD_DOXYGEN == TRUE ]]; then
-      sudo apt-get -qq install graphviz doxygen;
+      sudo apt-get -qq install graphviz doxygen parallel;
       script/doxygen.sh;
       DOXYGEN_DIR=doc/html;
+      find $DOXYGEN_DIR -type f -name "*.md5" -exec rm {} ";";
       find $DOXYGEN_DIR -type f | xargs shasum | sort > doxygen_shasum.txt;
       cp doxygen_shasum.txt $DOXYGEN_DIR/;
       wget http://dl.dropboxusercontent.com/u/203889738/${DOXYGEN_DIR}/doxygen_shasum.txt -O doxygen_shasum_old.txt;
-      comm -23 doxygen_shasum.txt doxygen_shasum_old.txt | cut -d ' ' -f 3 > doxygen_new_files.txt;
-      echo "${DOXYGEN_DIR}/doxygen_shasum.txt" >> doxygen_new_files.txt;
-      comm -13 doxygen_shasum.txt doxygen_shasum_old.txt | cut -d ' ' -f 3 > doxygen_delete_files.txt;
-      script/dropbox_upload.py --destpath /Public --dropbox-token ${DROPBOX_KEY} --copylist doxygen_new_files.txt;
+      comm -23 doxygen_shasum.txt doxygen_shasum_old.txt | cut -d ' ' -f 3 | split -l 100 - doxygen_new_files.txt.
+      echo "${DOXYGEN_DIR}/doxygen_shasum.txt" >> doxygen_new_files.txt.aa;
+      comm -13 doxygen_shasum.txt doxygen_shasum_old.txt | cut -d ' ' -f 3 | split -l 100 - doxygen_old_files.txt.
+      ls -1 doxygen_old_files.txt.* | parallel -u -j 10 'script/dropbox_upload.py --destpath "/Public" --dropbox-token "${DROPBOX_KEY}" --deletelist "{}"';
+      ls -1 doxygen_new_files.txt.* | parallel -u -j 10 'script/dropbox_upload.py --destpath "/Public" --dropbox-token "${DROPBOX_KEY}" --copylist "{}"';
   fi
 - if [[ $LEANREPO == BLESSED && $UPLOAD ]]; then
       UPLOAD_DIR=bin;