diff --git a/opensciencegrid/ospool-ganglia/Dockerfile b/opensciencegrid/ospool-ganglia/Dockerfile
index 9ddb9b46..06735be0 100644
--- a/opensciencegrid/ospool-ganglia/Dockerfile
+++ b/opensciencegrid/ospool-ganglia/Dockerfile
@@ -7,7 +7,12 @@ FROM opensciencegrid/ospool-cm:$BASE_OSG_SERIES-$BASE_YUM_REPO
 # has to be redefined for use in the RUN stages
 ARG BASE_YUM_REPO
 
-RUN yum -y install \
+# Do not use OSG's rrdtool on EL7 -- it is too new and causes dependency failures
+RUN . /etc/os-release && \
+    if [ "$VERSION_ID" = "7*" ]; then \
+        yum -y install rrdtool --disablerepo=osg\*; \
+    fi && \
+    yum -y install \
       ganglia-gmond \
       ganglia-gmetad \
       ganglia-web \