diff --git a/Dockerfile b/Dockerfile
index 3264a1a..50d71c8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,5 +13,6 @@ COPY entrypoint.sh /
 RUN chmod +x /entrypoint.sh
 
 COPY site-defaults.cfg /etc/mock/
+
 ENTRYPOINT ["/entrypoint.sh"]
 
diff --git a/entrypoint.sh b/entrypoint.sh
index 7386912..0b6636d 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -10,6 +10,9 @@ SYSTEM=${INPUT_SYSTEM}
 ARCH=${INPUT_ARCH}
 NOCHECK=${INPUT_NOCHECK}
 
+rm -rf /var/lib/mock/*
+mount -t tmpfs tmpfs /var/lib/mock
+
 RESULT="rpms=["
 
 for SPEC in ${SPECS[@]}; do