diff --git a/src/dsproof.js b/src/dsproof.js
index a90e074..c6638a0 100644
--- a/src/dsproof.js
+++ b/src/dsproof.js
@@ -6,7 +6,8 @@ class DSProof {
   constructor (config) {
     this.restURL = config.restURL
     this.authToken = config.authToken
-    this.axios = axios
+    // Use the shared axios instance if provided, otherwise fall back to axios
+    this.axios = config.axios || axios
 
     this.axiosOptions = {
       headers: {