diff --git a/rootfs/manager/Dockerfile b/rootfs/manager/Dockerfile
index 02e615d5d..d991b83e3 100644
--- a/rootfs/manager/Dockerfile
+++ b/rootfs/manager/Dockerfile
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 FROM alpine:3.3
+RUN apk --update add ca-certificates
 COPY . /
 EXPOSE 8080
 CMD ["/bin/manager", "--kubectl=/bin/kubectl"]
diff --git a/rootfs/resourcifier/Dockerfile b/rootfs/resourcifier/Dockerfile
index 8d168e844..a359e7f9a 100644
--- a/rootfs/resourcifier/Dockerfile
+++ b/rootfs/resourcifier/Dockerfile
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 FROM alpine:3.3
+RUN apk --update add ca-certificates
 COPY . /
 EXPOSE 8080
 CMD ["/bin/resourcifier", "--kubectl=/bin/kubectl"]