diff --git a/Dockerfile b/Dockerfile
index 22018f3..0efbb72 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,8 +10,11 @@ ARG layer_location
 
 WORKDIR /$layer_location
 
+# install gcc; needed by some packages
+RUN yum install gcc -y
+
 # requirements is in CWD because we've mounted the layer directory into the container
 # local_path_to_site_packages is relative to the layer directory
 ENTRYPOINT pip install \
         --target=$local_path_to_site_packages \
-        -r requirements.txt
\ No newline at end of file
+        -r requirements.txt