diff --git a/runner/Dockerfile b/runner/Dockerfile
index be937f41..e45eeecd 100644
--- a/runner/Dockerfile
+++ b/runner/Dockerfile
@@ -79,7 +79,7 @@ RUN export ARCH=$(echo ${TARGETPLATFORM} | cut -d / -f2) \
 
 RUN echo AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache > .env \
   && mkdir /opt/hostedtoolcache \
-  && chgrp runner /opt/hostedtoolcache \
+  && chgrp docker /opt/hostedtoolcache \
   && chmod g+rwx /opt/hostedtoolcache
 
 COPY entrypoint.sh /
diff --git a/runner/dindrunner.Dockerfile b/runner/dindrunner.Dockerfile
index 801acd5e..40178afa 100644
--- a/runner/dindrunner.Dockerfile
+++ b/runner/dindrunner.Dockerfile
@@ -88,7 +88,7 @@ RUN export ARCH=$(echo ${TARGETPLATFORM} | cut -d / -f2) \
 
 RUN echo AGENT_TOOLSDIRECTORY=/opt/hostedtoolcache > /runner.env \
   && mkdir /opt/hostedtoolcache \
-  && chgrp runner /opt/hostedtoolcache \
+  && chgrp docker /opt/hostedtoolcache \
   && chmod g+rwx /opt/hostedtoolcache
 
 COPY modprobe startup.sh /usr/local/bin/