diff --git a/vendor.conf b/vendor.conf
index d039b24c99..e618657335 100644
--- a/vendor.conf
+++ b/vendor.conf
@@ -127,7 +127,7 @@ github.com/googleapis/gax-go                        bd5b16380fd03dc758d11cef74ba
 google.golang.org/genproto                          3f1135a288c9a07e340ae8ba4cc6c7065a3160e8
 
 # containerd
-github.com/containerd/containerd                    8686ededfc90076914c5238eb96c883ea093a8ba # v1.5.7
+github.com/containerd/containerd                    1e5ef943eb76627a6d3b6de8cd1ef6537f393a71 # v1.5.8
 github.com/containerd/fifo                          650e8a8a179d040123db61f016cb133143e7a581 # v1.0.0
 github.com/containerd/continuity                    bce1c3f9669b6f3e7f6656ee715b0b4d75fa64a6 # v0.1.0
 github.com/containerd/cgroups                       b9de8a2212026c07cec67baf3323f1fc0121e048 # v1.0.1
diff --git a/vendor/github.com/containerd/containerd/go.mod b/vendor/github.com/containerd/containerd/go.mod
index 81e9c8019b..106cbd3394 100644
--- a/vendor/github.com/containerd/containerd/go.mod
+++ b/vendor/github.com/containerd/containerd/go.mod
@@ -4,7 +4,7 @@ go 1.16
 
 require (
 	github.com/Microsoft/go-winio v0.4.17
-	github.com/Microsoft/hcsshim v0.8.21
+	github.com/Microsoft/hcsshim v0.8.23
 	github.com/containerd/aufs v1.0.0
 	github.com/containerd/btrfs v1.0.0
 	github.com/containerd/cgroups v1.0.1
@@ -15,7 +15,7 @@ require (
 	github.com/containerd/go-runc v1.0.0
 	github.com/containerd/imgcrypt v1.1.1
 	github.com/containerd/nri v0.1.0
-	github.com/containerd/ttrpc v1.0.2
+	github.com/containerd/ttrpc v1.1.0
 	github.com/containerd/typeurl v1.0.2
 	github.com/containerd/zfs v1.0.0
 	github.com/containernetworking/plugins v0.9.1
@@ -46,7 +46,6 @@ require (
 	github.com/pelletier/go-toml v1.8.1
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.7.1
-	github.com/prometheus/procfs v0.6.0 // indirect; temporarily force v0.6.0, which was previously defined in imgcrypt as explicit version
 	github.com/satori/go.uuid v1.2.0 // indirect
 	github.com/sirupsen/logrus v1.8.1
 	github.com/stretchr/testify v1.6.1
diff --git a/vendor/github.com/containerd/containerd/images/image.go b/vendor/github.com/containerd/containerd/images/image.go
index 27384c16dd..2e5cd61c9a 100644
--- a/vendor/github.com/containerd/containerd/images/image.go
+++ b/vendor/github.com/containerd/containerd/images/image.go
@@ -19,6 +19,7 @@ package images
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"sort"
 	"time"
 
@@ -154,6 +155,10 @@ func Manifest(ctx context.Context, provider content.Provider, image ocispec.Desc
 				return nil, err
 			}
 
+			if err := validateMediaType(p, desc.MediaType); err != nil {
+				return nil, errors.Wrapf(err, "manifest: invalid desc %s", desc.Digest)
+			}
+
 			var manifest ocispec.Manifest
 			if err := json.Unmarshal(p, &manifest); err != nil {
 				return nil, err
@@ -194,6 +199,10 @@ func Manifest(ctx context.Context, provider content.Provider, image ocispec.Desc
 				return nil, err
 			}
 
+			if err := validateMediaType(p, desc.MediaType); err != nil {
+				return nil, errors.Wrapf(err, "manifest: invalid desc %s", desc.Digest)
+			}
+
 			var idx ocispec.Index
 			if err := json.Unmarshal(p, &idx); err != nil {
 				return nil, err
@@ -336,6 +345,10 @@ func Children(ctx context.Context, provider content.Provider, desc ocispec.Descr
 			return nil, err
 		}
 
+		if err := validateMediaType(p, desc.MediaType); err != nil {
+			return nil, errors.Wrapf(err, "children: invalid desc %s", desc.Digest)
+		}
+
 		// TODO(stevvooe): We just assume oci manifest, for now. There may be
 		// subtle differences from the docker version.
 		var manifest ocispec.Manifest
@@ -351,6 +364,10 @@ func Children(ctx context.Context, provider content.Provider, desc ocispec.Descr
 			return nil, err
 		}
 
+		if err := validateMediaType(p, desc.MediaType); err != nil {
+			return nil, errors.Wrapf(err, "children: invalid desc %s", desc.Digest)
+		}
+
 		var index ocispec.Index
 		if err := json.Unmarshal(p, &index); err != nil {
 			return nil, err
@@ -368,6 +385,44 @@ func Children(ctx context.Context, provider content.Provider, desc ocispec.Descr
 	return descs, nil
 }
 
+// unknownDocument represents a manifest, manifest list, or index that has not
+// yet been validated.
+type unknownDocument struct {
+	MediaType string          `json:"mediaType,omitempty"`
+	Config    json.RawMessage `json:"config,omitempty"`
+	Layers    json.RawMessage `json:"layers,omitempty"`
+	Manifests json.RawMessage `json:"manifests,omitempty"`
+	FSLayers  json.RawMessage `json:"fsLayers,omitempty"` // schema 1
+}
+
+// validateMediaType returns an error if the byte slice is invalid JSON or if
+// the media type identifies the blob as one format but it contains elements of
+// another format.
+func validateMediaType(b []byte, mt string) error {
+	var doc unknownDocument
+	if err := json.Unmarshal(b, &doc); err != nil {
+		return err
+	}
+	if len(doc.FSLayers) != 0 {
+		return fmt.Errorf("media-type: schema 1 not supported")
+	}
+	switch mt {
+	case MediaTypeDockerSchema2Manifest, ocispec.MediaTypeImageManifest:
+		if len(doc.Manifests) != 0 ||
+			doc.MediaType == MediaTypeDockerSchema2ManifestList ||
+			doc.MediaType == ocispec.MediaTypeImageIndex {
+			return fmt.Errorf("media-type: expected manifest but found index (%s)", mt)
+		}
+	case MediaTypeDockerSchema2ManifestList, ocispec.MediaTypeImageIndex:
+		if len(doc.Config) != 0 || len(doc.Layers) != 0 ||
+			doc.MediaType == MediaTypeDockerSchema2Manifest ||
+			doc.MediaType == ocispec.MediaTypeImageManifest {
+			return fmt.Errorf("media-type: expected index but found manifest (%s)", mt)
+		}
+	}
+	return nil
+}
+
 // RootFS returns the unpacked diffids that make up and images rootfs.
 //
 // These are used to verify that a set of layers unpacked to the expected
diff --git a/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go b/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go
index 5796fbf4a1..4b2c10e9a3 100644
--- a/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go
+++ b/vendor/github.com/containerd/containerd/remotes/docker/fetcher.go
@@ -60,6 +60,10 @@ func (r dockerFetcher) Fetch(ctx context.Context, desc ocispec.Descriptor) (io.R
 				log.G(ctx).WithError(err).Debug("failed to parse")
 				continue
 			}
+			if u.Scheme != "http" && u.Scheme != "https" {
+				log.G(ctx).Debug("non-http(s) alternative url is unsupported")
+				continue
+			}
 			log.G(ctx).Debug("trying alternative url")
 
 			// Try this first, parse it
diff --git a/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go b/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go
index 704eba4278..58c866bcde 100644
--- a/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go
+++ b/vendor/github.com/containerd/containerd/remotes/docker/httpreadseeker.go
@@ -26,12 +26,16 @@ import (
 	"github.com/pkg/errors"
 )
 
+const maxRetry = 3
+
 type httpReadSeeker struct {
 	size   int64
 	offset int64
 	rc     io.ReadCloser
 	open   func(offset int64) (io.ReadCloser, error)
 	closed bool
+
+	errsWithNoProgress int
 }
 
 func newHTTPReadSeeker(size int64, open func(offset int64) (io.ReadCloser, error)) (io.ReadCloser, error) {
@@ -53,6 +57,27 @@ func (hrs *httpReadSeeker) Read(p []byte) (n int, err error) {
 
 	n, err = rd.Read(p)
 	hrs.offset += int64(n)
+	if n > 0 || err == nil {
+		hrs.errsWithNoProgress = 0
+	}
+	if err == io.ErrUnexpectedEOF {
+		// connection closed unexpectedly. try reconnecting.
+		if n == 0 {
+			hrs.errsWithNoProgress++
+			if hrs.errsWithNoProgress > maxRetry {
+				return // too many retries for this offset with no progress
+			}
+		}
+		if hrs.rc != nil {
+			if clsErr := hrs.rc.Close(); clsErr != nil {
+				log.L.WithError(clsErr).Errorf("httpReadSeeker: failed to close ReadCloser")
+			}
+			hrs.rc = nil
+		}
+		if _, err2 := hrs.reader(); err2 == nil {
+			return n, nil
+		}
+	}
 	return
 }
 
diff --git a/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go b/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go
index 8314c01d5a..f15a9acf3e 100644
--- a/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go
+++ b/vendor/github.com/containerd/containerd/remotes/docker/schema1/converter.go
@@ -256,6 +256,9 @@ func (c *Converter) fetchManifest(ctx context.Context, desc ocispec.Descriptor)
 	if err := json.Unmarshal(b, &m); err != nil {
 		return err
 	}
+	if len(m.Manifests) != 0 || len(m.Layers) != 0 {
+		return errors.New("converter: expected schema1 document but found extra keys")
+	}
 	c.pulledManifest = &m
 
 	return nil
@@ -472,8 +475,10 @@ type history struct {
 }
 
 type manifest struct {
-	FSLayers []fsLayer `json:"fsLayers"`
-	History  []history `json:"history"`
+	FSLayers  []fsLayer       `json:"fsLayers"`
+	History   []history       `json:"history"`
+	Layers    json.RawMessage `json:"layers,omitempty"`    // OCI manifest
+	Manifests json.RawMessage `json:"manifests,omitempty"` // OCI index
 }
 
 type v1History struct {
diff --git a/vendor/github.com/containerd/containerd/task.go b/vendor/github.com/containerd/containerd/task.go
index ab7f9f0a8c..4e23fb8616 100644
--- a/vendor/github.com/containerd/containerd/task.go
+++ b/vendor/github.com/containerd/containerd/task.go
@@ -315,6 +315,7 @@ func (t *task) Delete(ctx context.Context, opts ...ProcessDeleteOpts) (*ExitStat
 		return nil, errors.Wrapf(errdefs.ErrFailedPrecondition, "task must be stopped before deletion: %s", status.Status)
 	}
 	if t.io != nil {
+		t.io.Close()
 		t.io.Cancel()
 		t.io.Wait()
 	}
diff --git a/vendor/github.com/containerd/containerd/version/version.go b/vendor/github.com/containerd/containerd/version/version.go
index b0d1fd48cf..b8200307f3 100644
--- a/vendor/github.com/containerd/containerd/version/version.go
+++ b/vendor/github.com/containerd/containerd/version/version.go
@@ -23,7 +23,7 @@ var (
 	Package = "github.com/containerd/containerd"
 
 	// Version holds the complete version number. Filled in at linking time.
-	Version = "1.5.7+unknown"
+	Version = "1.5.8+unknown"
 
 	// Revision is filled with the VCS (e.g. git) revision being used to build
 	// the program at linking time.