diff --git a/action.yml b/action.yml
index 7919282..5906e95 100644
--- a/action.yml
+++ b/action.yml
@@ -24,6 +24,10 @@ inputs:
     description: "The URL of the RFC 3161 time stamp server."
     required: false
     default: ""
+  timestamp_digest_algorithm:
+    description: "Specifies the digest algorithm to use for creating time stamps."
+    required: false
+    default: ""
   description:
     description: "Specifies a description of the signed content."
     required: false
diff --git a/src/index.ts b/src/index.ts
index a944b99..a1255d9 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -21,6 +21,8 @@ async function run() {
       file,
       certificate,
       timestampUrl: core.getInput('timestamp_url') || undefined,
+      timestampRfc3161Url: core.getInput('timestamp_rfc3161_url') || undefined,
+      timestampDigestAlgorithm: core.getInput('timestamp_digest_algorithm') || undefined,
       description: core.getInput('description') || undefined,
       descriptionUrl: core.getInput('description_url') || undefined,
       additionalCertificates: core.getInput('additional_certificate') || undefined,
diff --git a/src/utils.ts b/src/utils.ts
index d4f068f..c648409 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -82,6 +82,7 @@ export interface SignOptions {
   certificate: string;
   timestampUrl?: string;
   timestampRfc3161Url?: string;
+  timestampDigestAlgorithm?: string;
   description?: string;
   descriptionUrl?: string;
   additionalCertificates?: string;
@@ -99,6 +100,9 @@ export async function sign(options: SignOptions) {
     if (options.timestampRfc3161Url) {
       args['tr'] = options.timestampRfc3161Url;
     }
+    if (options.timestampDigestAlgorithm) {
+      args['td'] = options.timestampDigestAlgorithm;
+    }
     if (options.description) {
       args['d'] = options.description;
     }