diff --git a/.travis.yml b/.travis.yml
index e04900a26..d2841278a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -53,7 +53,7 @@ install:
   - cd $PANDIR
 
   # Install astrometry.net
-  - wget http://astrometry.net/downloads/astrometry.net-0.72.tar.gz
+  - wget https://github.com/dstndstn/astrometry.net/releases/download/0.72/astrometry.net-0.72.tar.gz
   - tar zxvf astrometry.net-0.72.tar.gz
   - cd astrometry.net-0.72 && make && make py && make install INSTALL_DIR=$PANDIR/astrometry
   - echo 'add_path $PANDIR/astrometry/data' | sudo tee --append $PANDIR/astrometry/etc/astrometry.cfg
diff --git a/requirements.txt b/requirements.txt
index 53d813c69..e3b5c90a0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ gcloud
 google-cloud-storage
 matplotlib >= 2.0.0,<3.0.0
 mocket
-numpy >= 1.12.1
+numpy >= 1.12.1, !=1.15.3
 pycodestyle == 2.3.1
 pymongo >= 3.2.2
 pyserial >= 3.1.1