diff --git a/docker/Dockerfile b/docker/Dockerfile
index 15dd303..7ed5aa1 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -3,8 +3,8 @@ FROM centos:7
 RUN yum -y install java-11-openjdk \
     && yum clean all
 
-COPY rpm/target/rpm/com.teragrep-pth_05/RPMS/x86_64/com.teragrep-pth_05-*.rpm /rpm/
-RUN yum install -y /pth_05.rpm
+COPY rpm/target/rpm/com.teragrep-pth_05/RPMS/x86_64/com.teragrep-pth_05-*.rpm /pth_05.rpm
+RUN yum install -y /pth_05.rpm && rm -f /pth_05.rpm && dnf clean all
 
 ENV PTH_05_ENDPOINT="http://0.0.0.0:8080"
 ENV PTH_05_CREDENTIALS_FILE="/opt/teragrep/pth_05/etc/credentials.json"