diff --git a/go.mod b/go.mod
index 20d9f376f..eaa5500e7 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ module github.com/johnkerl/miller/v6
 // Local development:
 // replace github.com/johnkerl/lumin => /Users/kerl/git/johnkerl/lumin
 
-go 1.21
+go 1.20
 
 require (
 	github.com/facette/natsort v0.0.0-20181210072756-2cd4dd1e2dcb
diff --git a/go.sum b/go.sum
index d90a3b194..9d77adc44 100644
--- a/go.sum
+++ b/go.sum
@@ -18,7 +18,6 @@ github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:C
 github.com/klauspost/compress v1.17.10 h1:oXAz+Vh0PMUvJczoi+flxpnBEPxoER1IaAnU/NMPtT0=
 github.com/klauspost/compress v1.17.10/go.mod h1:pMDklpSncoRMuLFrf1W9Ss9KT+0rH90U12bZKk7uwG0=
 github.com/lestrrat-go/envload v0.0.0-20180220234015-a3eb8ddeffcc h1:RKf14vYWi2ttpEmkA4aQ3j4u9dStX2t4M8UM6qqNsG8=
-github.com/lestrrat-go/envload v0.0.0-20180220234015-a3eb8ddeffcc/go.mod h1:kopuH9ugFRkIXf3YoqHKyrJ9YfUFsckUU9S7B+XP+is=
 github.com/lestrrat-go/strftime v1.1.0 h1:gMESpZy44/4pXLO/m+sL0yBd1W6LjgjrrD4a68Gapyg=
 github.com/lestrrat-go/strftime v1.1.0/go.mod h1:uzeIB52CeUJenCo1syghlugshMysrqUT51HlxphXVeI=
 github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=