diff --git a/go.mod b/go.mod
index bc16da1f8..6dbd0847d 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/opencontainers/runc
 go 1.15
 
 require (
-	github.com/bits-and-blooms/bitset v1.2.0
+	github.com/bits-and-blooms/bitset v1.2.1
 	github.com/checkpoint-restore/go-criu/v5 v5.0.0
 	github.com/cilium/ebpf v0.6.2
 	github.com/containerd/console v1.0.3
diff --git a/go.sum b/go.sum
index f7b9c91d2..92fb2a987 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,7 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/bits-and-blooms/bitset v1.2.0 h1:Kn4yilvwNtMACtf1eYDlG8H77R07mZSPbMjLyS07ChA=
 github.com/bits-and-blooms/bitset v1.2.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
+github.com/bits-and-blooms/bitset v1.2.1 h1:M+/hrU9xlMp7t4TyTDQW97d3tRPVuKFC6zBEK16QnXY=
+github.com/bits-and-blooms/bitset v1.2.1/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
 github.com/checkpoint-restore/go-criu/v5 v5.0.0 h1:TW8f/UvntYoVDMN1K2HlT82qH1rb0sOjpGw3m6Ym+i4=
 github.com/checkpoint-restore/go-criu/v5 v5.0.0/go.mod h1:cfwC0EG7HMUenopBsUf9d89JlCLQIfgVcNsNN0t6T2M=
 github.com/cilium/ebpf v0.6.2 h1:iHsfF/t4aW4heW2YKfeHrVPGdtYTL4C4KocpM8KTSnI=
diff --git a/vendor/github.com/bits-and-blooms/bitset/bitset.go b/vendor/github.com/bits-and-blooms/bitset/bitset.go
index d688806a5..271ccdbd0 100644
--- a/vendor/github.com/bits-and-blooms/bitset/bitset.go
+++ b/vendor/github.com/bits-and-blooms/bitset/bitset.go
@@ -254,7 +254,9 @@ func (b *BitSet) Shrink(lastbitindex uint) *BitSet {
 	copy(shrunk, b.set[:idx])
 	b.set = shrunk
 	b.length = length
-	b.set[idx-1] &= (allBits >> (uint64(64) - uint64(length&(wordSize-1))))
+	if length < 64 {
+	  b.set[idx-1] &= (allBits >> (uint64(64) - uint64(length&(wordSize-1))))
+    }
 	return b
 }
 
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 12dbdc679..dd688adc6 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -1,4 +1,4 @@
-# github.com/bits-and-blooms/bitset v1.2.0
+# github.com/bits-and-blooms/bitset v1.2.1
 ## explicit
 github.com/bits-and-blooms/bitset
 # github.com/checkpoint-restore/go-criu/v5 v5.0.0