diff --git a/dist/adapter.esm.js b/dist/adapter.esm.js
index a7e1c8d81f13ccd323f1c83d321d9141ffbd5036..c8c1dac52e0fb3ef28f64cb2d4f8797f290b3bad 100644
--- a/dist/adapter.esm.js
+++ b/dist/adapter.esm.js
@@ -69,7 +69,7 @@ class Adapter {
    */
   auth() {
     return this.axios
-      .get(`{this.config.api}/token`, {
+      .get(`${this.config.api}/token`, {
         params: {
           client_id: this.config.client_id,
           secret: this.config.secret,
@@ -90,7 +90,7 @@ class Adapter {
   poll() {
     return this.getAuthorizationHeader()
       .then((headers) => {
-        return this.axios.get(`{this.config.api}/receive`, {
+        return this.axios.get(`${this.config.api}/receive`, {
           headers,
         });
       })
@@ -119,7 +119,7 @@ class Adapter {
     return this.getAuthorizationHeader()
       .then((headers) => {
         return this.axios.post(
-          `{this.config.api}/send`,
+          `${this.config.api}/send`,
           {
             topic,
             body,
@@ -149,7 +149,7 @@ class Adapter {
     return this.getAuthorizationHeader()
       .then((headers) => {
         return this.axios.post(
-          `{this.config.api}/notify`,
+          `${this.config.api}/notify`,
           {
             body,
           },
diff --git a/dist/adapter.js b/dist/adapter.js
index 031bbba0e742db6d0170ccddab409ef82dde28de..51b0ce26dd3c215f4c38d0e3e3a763abf4b41031 100644
--- a/dist/adapter.js
+++ b/dist/adapter.js
@@ -71,7 +71,7 @@ class Adapter {
    */
   auth() {
     return this.axios
-      .get(`{this.config.api}/token`, {
+      .get(`${this.config.api}/token`, {
         params: {
           client_id: this.config.client_id,
           secret: this.config.secret,
@@ -92,7 +92,7 @@ class Adapter {
   poll() {
     return this.getAuthorizationHeader()
       .then((headers) => {
-        return this.axios.get(`{this.config.api}/receive`, {
+        return this.axios.get(`${this.config.api}/receive`, {
           headers,
         });
       })
@@ -121,7 +121,7 @@ class Adapter {
     return this.getAuthorizationHeader()
       .then((headers) => {
         return this.axios.post(
-          `{this.config.api}/send`,
+          `${this.config.api}/send`,
           {
             topic,
             body,
@@ -151,7 +151,7 @@ class Adapter {
     return this.getAuthorizationHeader()
       .then((headers) => {
         return this.axios.post(
-          `{this.config.api}/notify`,
+          `${this.config.api}/notify`,
           {
             body,
           },