diff --git a/go.mod b/go.mod
index 9146b69..9e1f53a 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ require (
 	github.com/denisbrodbeck/machineid v1.0.1
 	github.com/entireio/auth-go v0.3.4
 	github.com/go-git/go-billy/v6 v6.0.0-alpha.1.0.20260519112248-0095b064a6c6
-	github.com/go-git/go-git/v6 v6.0.0-alpha.2
+	github.com/go-git/go-git/v6 v6.0.0-alpha.4
 	github.com/go-git/x/plugin/objectsigner/auto v0.0.0-20260330134459-33df49246da9
 	github.com/go-git/x/plugin/objectsigner/program v0.0.0-20260509055934-990a63433b45
 	github.com/google/uuid v1.6.0
@@ -105,7 +105,7 @@ require (
 	github.com/nwaples/rardecode/v2 v2.2.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.3.1 // indirect
 	github.com/pierrec/lz4/v4 v4.1.25 // indirect
-	github.com/pjbgf/sha1cd v0.5.0 // indirect
+	github.com/pjbgf/sha1cd v0.6.0 // indirect
 	github.com/pkoukk/tiktoken-go v0.1.8 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
diff --git a/go.sum b/go.sum
index 1204f15..818b69a 100644
--- a/go.sum
+++ b/go.sum
@@ -125,10 +125,10 @@ github.com/go-git/gcfg/v2 v2.0.2 h1:MY5SIIfTGGEMhdA7d7JePuVVxtKL7Hp+ApGDJAJ7dpo=
 github.com/go-git/gcfg/v2 v2.0.2/go.mod h1:/lv2NsxvhepuMrldsFilrgct6pxzpGdSRC13ydTLSLs=
 github.com/go-git/go-billy/v6 v6.0.0-alpha.1.0.20260519112248-0095b064a6c6 h1:AaQOU2NVLxnBGWkv5YSoxomcDCqlaqfCW0t00pNKtnk=
 github.com/go-git/go-billy/v6 v6.0.0-alpha.1.0.20260519112248-0095b064a6c6/go.mod h1:eaCUpHbedW7//EwcYmUDfJe2N6sJC9O12AT0OTqJR1E=
-github.com/go-git/go-git-fixtures/v6 v6.0.0-20260405195209-b16dd39735e0 h1:XoTsdvaghuVfIr7HpNTmFDLu2nz3I2iGqyn6Uk6MkJc=
-github.com/go-git/go-git-fixtures/v6 v6.0.0-20260405195209-b16dd39735e0/go.mod h1:1Lr7/vYEYyl6Ir9Ku0tKrCIRreM5zovv0Jdx2MPSM4s=
-github.com/go-git/go-git/v6 v6.0.0-alpha.2 h1:T3loNtDuAixNzXtlQxZhnYiYpaQ3CA4vn9RssAniEeI=
-github.com/go-git/go-git/v6 v6.0.0-alpha.2/go.mod h1:oCD3i19CTz7gBpeb11ZZqL91WzqbMq9avn5KpUYy/Ak=
+github.com/go-git/go-git-fixtures/v6 v6.0.0-alpha.1 h1:gmqi2jvsreu0s8JMLylYDFq4sbjHwwlhktMw0DUg3mA=
+github.com/go-git/go-git-fixtures/v6 v6.0.0-alpha.1/go.mod h1:ECf1MqJlBdYpKggBrOXjo/0EnvRZx6D++I86UYjPgAQ=
+github.com/go-git/go-git/v6 v6.0.0-alpha.4 h1:aDTc2UGanmaE7FkGLSlBEB9nohMnQ+RKXcfq/D+esDQ=
+github.com/go-git/go-git/v6 v6.0.0-alpha.4/go.mod h1:4ODa/G7hPWrh4Y+7lmt59Ij3zW38IEfvRoAZxLYYBhc=
 github.com/go-git/x/plugin/objectsigner/auto v0.0.0-20260330134459-33df49246da9 h1:kXhj69S4g73PBLPwE/HKaD3a4fGtz3si5wHevmcvJ10=
 github.com/go-git/x/plugin/objectsigner/auto v0.0.0-20260330134459-33df49246da9/go.mod h1:iP2cXPyXc//9v9THS3y/MLi0jnt7vEqwUDj11qQfFPg=
 github.com/go-git/x/plugin/objectsigner/gpg v0.1.0 h1:NEGVSOD+LPnus6j4iNkAZaHVTc4DNY223y1/I2Jq2yI=
@@ -222,8 +222,8 @@ github.com/petermattis/goid v0.0.0-20260330135022-df67b199bc81 h1:WDsQxOJDy0N1VR
 github.com/petermattis/goid v0.0.0-20260330135022-df67b199bc81/go.mod h1:pxMtw7cyUw6B2bRH0ZBANSPg+AoSud1I1iyJHI69jH4=
 github.com/pierrec/lz4/v4 v4.1.25 h1:kocOqRffaIbU5djlIBr7Wh+cx82C0vtFb0fOurZHqD0=
 github.com/pierrec/lz4/v4 v4.1.25/go.mod h1:EoQMVJgeeEOMsCqCzqFm2O0cJvljX2nGZjcRIPL34O4=
-github.com/pjbgf/sha1cd v0.5.0 h1:a+UkboSi1znleCDUNT3M5YxjOnN1fz2FhN48FlwCxs0=
-github.com/pjbgf/sha1cd v0.5.0/go.mod h1:lhpGlyHLpQZoxMv8HcgXvZEhcGs0PG/vsZnEJ7H0iCM=
+github.com/pjbgf/sha1cd v0.6.0 h1:3WJ8Wz8gvDz29quX1OcEmkAlUg9diU4GxJHqs0/XiwU=
+github.com/pjbgf/sha1cd v0.6.0/go.mod h1:lhpGlyHLpQZoxMv8HcgXvZEhcGs0PG/vsZnEJ7H0iCM=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pkoukk/tiktoken-go v0.1.8 h1:85ENo+3FpWgAACBaEUVp+lctuTcYUO7BtmfhlN/QTRo=
 github.com/pkoukk/tiktoken-go v0.1.8/go.mod h1:9NiV+i9mJKGj1rYOT+njbv+ZwA/zJxYdewGl6qVatpg=