diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ab6469..9e6dacc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,6 @@
+## 0.34.2 (September 26, 2023)
+- fix: gql request crashes when formatting scalar args
+
 ## 0.34.1 (September 25, 2023)
 - fix: input string should can have \n in gql query
 
diff --git a/packages/sdk-util/src/util.js b/packages/sdk-util/src/util.js
index a02a14d..5d1ba40 100644
--- a/packages/sdk-util/src/util.js
+++ b/packages/sdk-util/src/util.js
@@ -190,7 +190,7 @@ const formatArgs = (values, specs = {}) => {
 
     // escape slash(\) and double quotes (")
     if ('String' === type) {
-      const container = isNull(value) ? null : value.includes('\n') ? '"""' : '"';
+      const container = isNull(value) ? null : (value || '').includes('\n') ? '"""' : '"';
 
       return isNull(value) ? null : `${container}${value
         .toString()
diff --git a/version b/version
index cd46610..3f8003c 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-0.34.1
+0.34.2