diff --git a/builder/default.nix b/builder/default.nix
index 82dd417..fcfd651 100644
--- a/builder/default.nix
+++ b/builder/default.nix
@@ -106,11 +106,13 @@ let
 
         sources = toJSON (filterAttrs (n: _: n != defaultPackage) sources);
 
+        vendorModules = modulesStruct.vendorModulesTxt or "";
+
         passthru = {
           inherit sources;
         };
 
-        passAsFile = [ "json" "sources" ];
+        passAsFile = [ "json" "sources" "vendorModules" ];
       }
       (
         ''
@@ -122,6 +124,8 @@ let
           ${internal.symlink}
           ${concatStringsSep "\n" localReplaceCommands}
 
+          cp $vendorModulesPath vendor/modules.txt
+
           mv vendor $out
         ''
       );
diff --git a/go.mod b/go.mod
index 6cf83b5..f8f73ff 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/nix-community/gomod2nix
 
-go 1.17
+go 1.23
 
 require (
 	github.com/BurntSushi/toml v1.4.0
diff --git a/go.sum b/go.sum
index f718f2d..3e43297 100644
--- a/go.sum
+++ b/go.sum
@@ -77,23 +77,17 @@ github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljT
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/crypto v0.13.0/go.mod h1:y6Z2r+Rw4iayiXXAIxJIDAJ1zMW4yaTpebo8fPOliYc=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.22.0 h1:D4nJWe9zXqHOmWqj4VMOJhvzj7bEZg4wEYa759z1pH4=
 golang.org/x/mod v0.22.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -104,11 +98,6 @@ golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
-golang.org/x/net v0.15.0/go.mod h1:idbUs1IY1+zTqbi8yxTbhexhEEk5ur9LInksu6HrEpk=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -116,38 +105,18 @@ golang.org/x/sync v0.0.0-20190227155943-e225da77a7e6/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.3.0/go.mod h1:FU7BRWz2tNW+3quACPkgCx/L+uEAv1htQ0V83Z9Rj+Y=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.14.0 h1:Vz7Qs629MkJkGyHxUlRHizWJRG2j8fbQKjELVSNhy7Q=
 golang.org/x/sys v0.14.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
-golang.org/x/term v0.8.0/go.mod h1:xPskH00ivmX89bAKVGSKKtLOWNx2+17Eiy94tnKShWo=
-golang.org/x/term v0.12.0/go.mod h1:owVbMEjm3cBLCHdkQu9b1opXd4ETQWc3BhuQGKgXgvU=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
@@ -155,10 +124,6 @@ golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
-golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools/go/vcs v0.1.0-deprecated h1:cOIJqWBl99H1dH5LWizPa+0ImeeJq3t3cJjaeOWUAL4=
 golang.org/x/tools/go/vcs v0.1.0-deprecated/go.mod h1:zUrvATBAvEI9535oC0yWYsLsHIV4Z7g63sNPVMtuBy8=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/gomod2nix.toml b/gomod2nix.toml
index 3828b06..8a348d5 100644
--- a/gomod2nix.toml
+++ b/gomod2nix.toml
@@ -1,4 +1,5 @@
-schema = 3
+schema = 4
+vendorModulesTxt = "# github.com/BurntSushi/toml v1.4.0\n## explicit; go 1.18\ngithub.com/BurntSushi/toml\ngithub.com/BurntSushi/toml/internal\n# github.com/inconshreveable/mousetrap v1.1.0\n## explicit; go 1.18\ngithub.com/inconshreveable/mousetrap\n# github.com/nix-community/go-nix v0.0.0-20220612195009-5f5614f7ca47\n## explicit; go 1.15\ngithub.com/nix-community/go-nix/pkg/nar\ngithub.com/nix-community/go-nix/pkg/wire\n# github.com/sirupsen/logrus v1.9.3\n## explicit; go 1.13\ngithub.com/sirupsen/logrus\n# github.com/spf13/cobra v1.8.1\n## explicit; go 1.15\ngithub.com/spf13/cobra\n# github.com/spf13/pflag v1.0.5\n## explicit; go 1.12\ngithub.com/spf13/pflag\n# golang.org/x/mod v0.22.0\n## explicit; go 1.22\ngolang.org/x/mod/internal/lazyregexp\ngolang.org/x/mod/modfile\ngolang.org/x/mod/module\ngolang.org/x/mod/semver\n# golang.org/x/sys v0.14.0\n## explicit; go 1.18\ngolang.org/x/sys/execabs\ngolang.org/x/sys/unix\ngolang.org/x/sys/windows\n# golang.org/x/tools/go/vcs v0.1.0-deprecated\n## explicit; go 1.19\ngolang.org/x/tools/go/vcs\n"
 
 [mod]
   [mod."github.com/BurntSushi/toml"]
diff --git a/internal/cmd/root.go b/internal/cmd/root.go
index b435941..981d672 100644
--- a/internal/cmd/root.go
+++ b/internal/cmd/root.go
@@ -5,10 +5,10 @@ import (
 	"os"
 	"path/filepath"
 
-	log "github.com/sirupsen/logrus"
-	"github.com/spf13/cobra"
 	generate "github.com/nix-community/gomod2nix/internal/generate"
 	schema "github.com/nix-community/gomod2nix/internal/schema"
+	log "github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
 )
 
 const directoryDefault = "./"
@@ -62,7 +62,7 @@ func generateFunc(cmd *cobra.Command, args []string) {
 	{
 		goMod2NixPath := filepath.Join(outDir, "gomod2nix.toml")
 		outFile := goMod2NixPath
-		pkgs, err := generate.GeneratePkgs(directory, goMod2NixPath, maxJobs)
+		generated, err := generate.GeneratePkgs(directory, goMod2NixPath, maxJobs)
 		if err != nil {
 			panic(fmt.Errorf("error generating pkgs: %v", err))
 		}
@@ -75,7 +75,7 @@ func generateFunc(cmd *cobra.Command, args []string) {
 			goPackagePath = tmpProj.GoPackagePath
 		}
 
-		output, err := schema.Marshal(pkgs, goPackagePath, subPackages)
+		output, err := schema.Marshal(generated, goPackagePath, subPackages)
 		if err != nil {
 			panic(fmt.Errorf("error marshaling output: %v", err))
 		}
diff --git a/internal/generate/generate.go b/internal/generate/generate.go
index 8980d0f..a212447 100644
--- a/internal/generate/generate.go
+++ b/internal/generate/generate.go
@@ -140,7 +140,7 @@ builtins.filterSource (name: type: baseNameOf name != ".DS_Store") (
 	return executor.Wait()
 }
 
-func GeneratePkgs(directory string, goMod2NixPath string, numWorkers int) ([]*schema.Package, error) {
+func GeneratePkgs(directory string, goMod2NixPath string, numWorkers int) (*schema.GeneratePkgsResult, error) {
 	modDownloads, replace, err := common(directory)
 	if err != nil {
 		return nil, err
@@ -208,10 +208,45 @@ func GeneratePkgs(directory string, goMod2NixPath string, numWorkers int) ([]*sc
 		return nil, err
 	}
 
+	// Dependencies are downloaded, run `go mod vendor` to obtain `vendor/modules.txt` without reverse engineering
+	const tmpVendorEnvRelative = "vendor-gomod2nix"
+	tmpVendorEnvAbsolute := filepath.Join(directory, tmpVendorEnvRelative)
+	err = os.RemoveAll(tmpVendorEnvAbsolute)
+	if err != nil {
+		return nil, err
+	}
+	defer func() {
+		_ = os.RemoveAll(tmpVendorEnvAbsolute)
+	}()
+
+	var modulesTxt string
+	{
+		log.Info("Obtaining modules.txt")
+		cmd := exec.Command(
+			"go", "mod", "vendor", "-o", tmpVendorEnvRelative,
+		)
+		cmd.Dir = directory
+		err = cmd.Run()
+		if err != nil {
+			return nil, err
+		}
+		modulesTxtBytes, err := os.ReadFile(filepath.Join(tmpVendorEnvAbsolute, "modules.txt"))
+		if err != nil {
+			return nil, err
+		}
+		if len(modulesTxtBytes) == 0 {
+			return nil, fmt.Errorf("modules.txt has no content")
+		}
+		modulesTxt = string(modulesTxtBytes)
+	}
+
 	sort.Slice(packages, func(i, j int) bool {
 		return packages[i].GoPackagePath < packages[j].GoPackagePath
 	})
 
-	return packages, nil
+	return &schema.GeneratePkgsResult{
+		Packages:   packages,
+		ModulesTxt: string(modulesTxt),
+	}, nil
 
 }
diff --git a/internal/schema/schema.go b/internal/schema/schema.go
index 2ca359f..addde7f 100644
--- a/internal/schema/schema.go
+++ b/internal/schema/schema.go
@@ -2,11 +2,12 @@ package types
 
 import (
 	"bytes"
-	"github.com/BurntSushi/toml"
 	"os"
+
+	"github.com/BurntSushi/toml"
 )
 
-const SchemaVersion = 3
+const SchemaVersion = 4
 
 type Package struct {
 	GoPackagePath string `toml:"-"`
@@ -18,6 +19,7 @@ type Package struct {
 type Output struct {
 	SchemaVersion int                 `toml:"schema"`
 	Mod           map[string]*Package `toml:"mod"`
+	VendorModules string              `toml:"vendorModulesTxt"`
 
 	// Packages with passed import paths trigger `go install` based on this list
 	SubPackages []string `toml:"subPackages,omitempty"`
@@ -26,15 +28,21 @@ type Output struct {
 	GoPackagePath string `toml:"goPackagePath,omitempty"`
 }
 
-func Marshal(pkgs []*Package, goPackagePath string, subPackages []string) ([]byte, error) {
+type GeneratePkgsResult struct {
+	Packages   []*Package
+	ModulesTxt string
+}
+
+func Marshal(generated *GeneratePkgsResult, goPackagePath string, subPackages []string) ([]byte, error) {
 	out := &Output{
 		SchemaVersion: SchemaVersion,
 		Mod:           make(map[string]*Package),
 		SubPackages:   subPackages,
 		GoPackagePath: goPackagePath,
+		VendorModules: generated.ModulesTxt,
 	}
 
-	for _, pkg := range pkgs {
+	for _, pkg := range generated.Packages {
 		out.Mod[pkg.GoPackagePath] = pkg
 	}