diff --git a/Dockerfile b/Dockerfile
index 5630305a..931c544f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM ocaml/opam:debian-10-ocaml-4.12@sha256:9ce3fcbb65b4a23c56445d5c15e5009a37e904f0306586bbee57f8791a99f58c AS build
 RUN sudo apt-get update && sudo apt-get install libev-dev capnproto m4 pkg-config libsqlite3-dev libgmp-dev -y --no-install-recommends
-RUN cd ~/opam-repository && git pull origin -q master && git reset --hard 5247d732ce1392a737ff162ee69f674b10a0e6a4 && opam update
+RUN cd ~/opam-repository && git pull origin -q master && git reset --hard 9935f57dd3f9722e6ca803aeb232b49d7058abf8 && opam update
 COPY --chown=opam ocluster-api.opam ocluster.opam /src/
 COPY --chown=opam obuilder/obuilder.opam obuilder/obuilder-spec.opam /src/obuilder/
 RUN opam pin -yn /src/obuilder/
diff --git a/Dockerfile.worker b/Dockerfile.worker
index 607884f7..9989b6c7 100644
--- a/Dockerfile.worker
+++ b/Dockerfile.worker
@@ -1,6 +1,6 @@
 FROM ocaml/opam:debian-10-ocaml-4.12@sha256:9ce3fcbb65b4a23c56445d5c15e5009a37e904f0306586bbee57f8791a99f58c AS build
 RUN sudo apt-get update && sudo apt-get install libev-dev capnproto m4 pkg-config libsqlite3-dev libgmp-dev -y --no-install-recommends
-RUN cd ~/opam-repository && git pull origin -q master && git reset --hard 5247d732ce1392a737ff162ee69f674b10a0e6a4 && opam update
+RUN cd ~/opam-repository && git pull origin -q master && git reset --hard 9935f57dd3f9722e6ca803aeb232b49d7058abf8 && opam update
 COPY --chown=opam ocluster-api.opam ocluster.opam /src/
 COPY --chown=opam obuilder/obuilder.opam obuilder/obuilder-spec.opam /src/obuilder/
 RUN opam pin -yn /src/obuilder/
@@ -9,20 +9,9 @@ RUN opam install -y --deps-only .
 ADD --chown=opam . .
 RUN opam config exec -- dune build ./_build/install/default/bin/ocluster-worker
 
-FROM golang:1.15-buster AS runc
-RUN apt-get update && apt-get -y install libseccomp-dev
-RUN wget https://github.com/opencontainers/runc/archive/v1.0.0-rc92.tar.gz
-RUN mkdir -p github.com/opencontainers
-RUN tar xf v1.0.0-rc92.tar.gz -C github.com/opencontainers
-RUN mv github.com/opencontainers/runc-* github.com/opencontainers/runc
-WORKDIR github.com/opencontainers/runc
-RUN make
-RUN make install
-
 FROM debian:10
 RUN apt-get update && apt-get install docker.io libev4 curl gnupg2 git libsqlite3-dev ca-certificates netbase -y --no-install-recommends
 WORKDIR /var/lib/ocluster-worker
 ENTRYPOINT ["/usr/local/bin/ocluster-worker"]
 ENV PROGRESS_NO_TRUNC=1
 COPY --from=build /src/_build/install/default/bin/ocluster-worker /usr/local/bin/
-COPY --from=runc /usr/local/sbin/runc /usr/local/bin/