diff --git a/go.mod b/go.mod
index 813e0e31d..006d69b3e 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/google/go-cmp v0.5.2
 	github.com/gorilla/websocket v1.4.2
 	github.com/lucas-clemente/quic-go v0.18.1
-	github.com/miekg/dns v1.1.32
+	github.com/miekg/dns v1.1.33
 	github.com/pires/go-proxyproto v0.2.0
 	github.com/seiflotfy/cuckoofilter v0.0.0-20200511222245-56093a4d3841
 	github.com/stretchr/testify v1.6.1
diff --git a/go.sum b/go.sum
index 73bcca2a2..1aea4f16d 100644
--- a/go.sum
+++ b/go.sum
@@ -107,8 +107,8 @@ github.com/marten-seemann/qtls-go1-15 v0.1.0 h1:i/YPXVxz8q9umso/5y474CNcHmTpA+5D
 github.com/marten-seemann/qtls-go1-15 v0.1.0/go.mod h1:GyFwywLKkRt+6mfU99csTEY1joMZz5vmB1WNZH3P81I=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/microcosm-cc/bluemonday v1.0.1/go.mod h1:hsXNsILzKxV+sX77C5b8FSuKF00vh2OMYv+xgHpAMF4=
-github.com/miekg/dns v1.1.32 h1:MDaYYzWOYscpvDOEgPMT1c1mebCZmIdxZI/J161OdJU=
-github.com/miekg/dns v1.1.32/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
+github.com/miekg/dns v1.1.33 h1:8KUVEKrUw2dmu1Ys0aWnkEJgoRaLAzNysfCh2KSMWiI=
+github.com/miekg/dns v1.1.33/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/neelance/astrewrite v0.0.0-20160511093645-99348263ae86/go.mod h1:kHJEU3ofeGjhHklVoIGuVj85JJwZ6kWPaJwCIxgnFmo=