diff --git a/go.sum b/go.sum
index 481bd33..2eb3c13 100644
--- a/go.sum
+++ b/go.sum
@@ -1074,8 +1074,6 @@ github.com/bits-and-blooms/bitset v1.5.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edY
 github.com/bits-and-blooms/bitset v1.7.0/go.mod h1:gIdJ4wp64HaoK2YrL1Q5/N7Y16edYb8uY+O0FJTyyDA=
 github.com/bits-and-blooms/bitset v1.10.0 h1:ePXTeiPEazB5+opbv5fr8umg2R/1NlzgDsyepwsSr88=
 github.com/bits-and-blooms/bitset v1.10.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
-github.com/bjartek/underflow v1.6.0 h1:Ln5dUBpn8Xk1+1ljKXcV23LocGKjHz8mJpD+kX2YutY=
-github.com/bjartek/underflow v1.6.0/go.mod h1:3K53iX65TzDBnTOaZt7yXmiFfYiIFtFfECn6xrCQWVA=
 github.com/bjartek/underflow v1.7.0 h1:9B3m+IpAX5j9f5n8FlkxnwsSgvsnkdhzYlusNdQYSHY=
 github.com/bjartek/underflow v1.7.0/go.mod h1:3dujqcYAOma8r05PZW9qBoHNnHpcb4fWRbNX0181YN4=
 github.com/bmizerany/pat v0.0.0-20170815010413-6226ea591a40/go.mod h1:8rLXio+WjiTceGBHIoTvn60HIbs7Hm7bcHjyrSqYB9c=