diff --git a/go.mod b/go.mod
index 579dc1c0c..f8ab387cf 100644
--- a/go.mod
+++ b/go.mod
@@ -1,7 +1,7 @@
 module github.com/go-git/go-git/v6
 
 // go-git supports the last 3 stable Go versions.
-go 1.24.0
+go 1.25.0
 
 require (
 	github.com/Microsoft/go-winio v0.6.2
@@ -10,7 +10,7 @@ require (
 	github.com/emirpasic/gods v1.18.1
 	github.com/gliderlabs/ssh v0.3.8
 	github.com/go-git/gcfg/v2 v2.0.2
-	github.com/go-git/go-billy/v6 v6.0.0-20251217170237-e9738f50a3cd
+	github.com/go-git/go-billy/v6 v6.0.0-alpha.1
 	github.com/go-git/go-git-fixtures/v5 v5.1.2-0.20251229094738-4b14af179146
 	github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8
 	github.com/kevinburke/ssh_config v1.4.0
@@ -19,14 +19,13 @@ require (
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/crypto v0.46.0
 	golang.org/x/net v0.48.0
-	golang.org/x/sys v0.39.0
+	golang.org/x/sys v0.44.0
 	golang.org/x/text v0.32.0
 )
 
 require (
 	github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be // indirect
 	github.com/cloudflare/circl v1.6.1 // indirect
-	github.com/cyphar/filepath-securejoin v0.6.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
diff --git a/go.sum b/go.sum
index 4d52827cf..5311168a2 100644
--- a/go.sum
+++ b/go.sum
@@ -9,8 +9,6 @@ github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkY
 github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
 github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
-github.com/cyphar/filepath-securejoin v0.6.1 h1:5CeZ1jPXEiYt3+Z6zqprSAgSWiggmpVyciv8syjIpVE=
-github.com/cyphar/filepath-securejoin v0.6.1/go.mod h1:A8hd4EnAeyujCJRrICiOWqjS1AX0a9kM5XL+NwKoYSc=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -20,8 +18,8 @@ github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
 github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
 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 v6.0.0-20251217170237-e9738f50a3cd h1:Gd/f9cGi/3h1JOPaa6er+CkKUGyGX2DBJdFbDKVO+R0=
-github.com/go-git/go-billy/v6 v6.0.0-20251217170237-e9738f50a3cd/go.mod h1:d3XQcsHu1idnquxt48kAv+h+1MUiYKLH/e7LAzjP+pI=
+github.com/go-git/go-billy/v6 v6.0.0-alpha.1 h1:xVjAR4oUvrKy7/Xuw/lLlV3gkxR3KO2H8W+MamuVVsQ=
+github.com/go-git/go-billy/v6 v6.0.0-alpha.1/go.mod h1:eaCUpHbedW7//EwcYmUDfJe2N6sJC9O12AT0OTqJR1E=
 github.com/go-git/go-git-fixtures/v5 v5.1.2-0.20251229094738-4b14af179146 h1:xYfxAopYyL44ot6dMBIb1Z1njFM0ZBQ99HdIB99KxLs=
 github.com/go-git/go-git-fixtures/v5 v5.1.2-0.20251229094738-4b14af179146/go.mod h1:QE/75B8tBSLNGyUUbA9tw3EGHoFtYOtypa2h8YJxsWI=
 github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 h1:f+oWsMOmNPc8JmEHVZIycC7hBoQxHH9pNKQORJNozsQ=
@@ -56,8 +54,8 @@ golang.org/x/crypto v0.46.0 h1:cKRW/pmt1pKAfetfu+RCEvjvZkA9RimPbh7bhFjGVBU=
 golang.org/x/crypto v0.46.0/go.mod h1:Evb/oLKmMraqjZ2iQTwDwvCtJkczlDuTmdJXoZVzqU0=
 golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
 golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
-golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.44.0 h1:ildZl3J4uzeKP07r2F++Op7E9B29JRUy+a27EibtBTQ=
+golang.org/x/sys v0.44.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
 golang.org/x/term v0.38.0 h1:PQ5pkm/rLO6HnxFR7N2lJHOZX6Kez5Y1gDSJla6jo7Q=
 golang.org/x/term v0.38.0/go.mod h1:bSEAKrOT1W+VSu9TSCMtoGEOUcKxOKgl3LE5QEF/xVg=
 golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=