diff --git a/gptscript_test.go b/gptscript_test.go
index 9a667da..3c06a81 100644
--- a/gptscript_test.go
+++ b/gptscript_test.go
@@ -345,6 +345,36 @@ func TestStreamRun(t *testing.T) {
 	}
 }
 
+func TestCredentialOverride(t *testing.T) {
+	wd, err := os.Getwd()
+	if err != nil {
+		t.Fatalf("Error getting working directory: %v", err)
+	}
+
+	run, err := g.Run(context.Background(), wd+"/test/credential-override.gpt", Options{
+		DisableCache: true,
+		CredentialOverrides: []string{
+			"test.ts.credential_override:TEST_CRED=foo",
+		},
+	})
+	if err != nil {
+		t.Fatalf("Error executing file: %v", err)
+	}
+
+	out, err := run.Text()
+	if err != nil {
+		t.Errorf("Error reading output: %v", err)
+	}
+
+	if !strings.Contains(out, "foo") {
+		t.Errorf("Unexpected output: %s", out)
+	}
+
+	if len(run.ErrorOutput()) != 0 {
+		t.Error("Should have no stderr output")
+	}
+}
+
 func TestParseSimpleFile(t *testing.T) {
 	wd, err := os.Getwd()
 	if err != nil {
diff --git a/opts.go b/opts.go
index 0315b2c..1a16085 100644
--- a/opts.go
+++ b/opts.go
@@ -28,14 +28,14 @@ func (g GlobalOptions) toEnv() []string {
 type Options struct {
 	GlobalOptions `json:",inline"`
 
-	Confirm            bool   `json:"confirm"`
-	Input              string `json:"input"`
-	DisableCache       bool   `json:"disableCache"`
-	CacheDir           string `json:"cacheDir"`
-	SubTool            string `json:"subTool"`
-	Workspace          string `json:"workspace"`
-	ChatState          string `json:"chatState"`
-	IncludeEvents      bool   `json:"includeEvents"`
-	Prompt             bool   `json:"prompt"`
-	CredentialOverride string `json:"credentialOverride"`
+	Confirm             bool     `json:"confirm"`
+	Input               string   `json:"input"`
+	DisableCache        bool     `json:"disableCache"`
+	CacheDir            string   `json:"cacheDir"`
+	SubTool             string   `json:"subTool"`
+	Workspace           string   `json:"workspace"`
+	ChatState           string   `json:"chatState"`
+	IncludeEvents       bool     `json:"includeEvents"`
+	Prompt              bool     `json:"prompt"`
+	CredentialOverrides []string `json:"credentialOverrides"`
 }
diff --git a/test/credential-override.gpt b/test/credential-override.gpt
new file mode 100644
index 0000000..6211989
--- /dev/null
+++ b/test/credential-override.gpt
@@ -0,0 +1,5 @@
+credentials: github.com/gptscript-ai/credential as test.ts.credential_override with TEST_CRED as env
+
+#!/usr/bin/env bash
+
+echo "${TEST_CRED}"