diff --git a/.gitignore b/.gitignore
index cb7d7046..394a629d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ bin/start.sh
 bin/stop.sh
 bin/test.sh
 /.project
+*~
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 8388a57d..f39f447b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ RUN yum update -y \
 RUN yum install -y wget tar unzip dos2unix patch
     
 ARG GROUPER_CONTAINER_VERSION
-ENV GROUPER_VERSION=2.5.65 \
+ENV GROUPER_VERSION=2.5.66 \
      GROUPER_CONTAINER_VERSION=$GROUPER_CONTAINER_VERSION
 
 # Install Corretto Java JDK
@@ -32,7 +32,7 @@ RUN echo 'Installing Grouper'; \
     cd /opt/grouper/$GROUPER_VERSION/ \
     && $JAVA_HOME/bin/java -cp :grouperInstaller.jar edu.internet2.middleware.grouperInstaller.GrouperInstaller
 FROM centos:centos7 as cleanup
-ENV GROUPER_VERSION=2.5.65 \
+ENV GROUPER_VERSION=2.5.66 \
     TOMEE_VERSION=7.0.0
 RUN mkdir -p /opt/grouper/grouperWebapp/
 RUN mkdir -p /opt/tomee/