diff --git a/envbuilder.go b/envbuilder.go
index ecef41d5..7607a3ee 100644
--- a/envbuilder.go
+++ b/envbuilder.go
@@ -43,6 +43,7 @@ import (
 	"github.com/fatih/color"
 	"github.com/go-git/go-billy/v5"
 	"github.com/go-git/go-billy/v5/osfs"
+	"github.com/go-git/go-git/v5/plumbing/transport"
 	githttp "github.com/go-git/go-git/v5/plumbing/transport/http"
 	v1 "github.com/google/go-containerregistry/pkg/v1"
 	"github.com/google/go-containerregistry/pkg/v1/remote"
@@ -196,6 +197,10 @@ type Options struct {
 	// This is optional!
 	GitPassword string `env:"GIT_PASSWORD"`
 
+	// GitHTTPProxyURL is the url for the http proxy.
+	// This is optional!
+	GitHTTPProxyURL string `env:"GIT_HTTP_PROXY_URL"`
+
 	// WorkspaceFolder is the path to the workspace folder
 	// that will be built. This is optional!
 	WorkspaceFolder string `env:"WORKSPACE_FOLDER"`
@@ -363,6 +368,11 @@ func Run(ctx context.Context, options Options) error {
 				Password: options.GitPassword,
 			}
 		}
+		if options.GitHTTPProxyURL != "" {
+			cloneOpts.ProxyOptions = transport.ProxyOptions{
+				URL: options.GitHTTPProxyURL,
+			}
+		}
 		cloneOpts.RepoURL = options.GitURL
 
 		cloned, fallbackErr = CloneRepo(ctx, cloneOpts)
diff --git a/envbuilder_test.go b/envbuilder_test.go
index 84c476a0..ecd9d663 100644
--- a/envbuilder_test.go
+++ b/envbuilder_test.go
@@ -32,6 +32,7 @@ func TestSystemOptions(t *testing.T) {
 		"GIT_CLONE_DEPTH":        "1",
 		"GIT_URL":                "https://github.com/coder/coder",
 		"WORKSPACE_FOLDER":       "/workspaces/coder",
+		"GIT_HTTP_PROXY_URL":     "http://company-proxy.com:8081",
 	}
 	env := envbuilder.OptionsFromEnv(func(s string) (string, bool) {
 		return opts[s], true
@@ -47,4 +48,5 @@ func TestSystemOptions(t *testing.T) {
 	require.Equal(t, 1, env.GitCloneDepth)
 	require.Equal(t, "https://github.com/coder/coder", env.GitURL)
 	require.Equal(t, "/workspaces/coder", env.WorkspaceFolder)
+	require.Equal(t, "http://company-proxy.com:8081", env.GitHTTPProxyURL)
 }
diff --git a/git.go b/git.go
index 70419fc2..bbe7b096 100644
--- a/git.go
+++ b/git.go
@@ -26,6 +26,7 @@ type CloneRepoOptions struct {
 	SingleBranch bool
 	Depth        int
 	CABundle     []byte
+	ProxyOptions transport.ProxyOptions
 }
 
 // CloneRepo will clone the repository at the given URL into the given path.
@@ -78,6 +79,7 @@ func CloneRepo(ctx context.Context, opts CloneRepoOptions) (bool, error) {
 		Depth:           opts.Depth,
 		SingleBranch:    opts.SingleBranch,
 		CABundle:        opts.CABundle,
+		ProxyOptions:    opts.ProxyOptions,
 	})
 	if errors.Is(err, git.ErrRepositoryAlreadyExists) {
 		return false, nil