diff --git a/.tool-versions b/.tool-versions
index fd9b0be7..4c23a48c 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1,3 @@
-golang 1.22.3
\ No newline at end of file
+golang 1.22.3
+yarn 1.22.19
+nodejs 20.12.2
\ No newline at end of file
diff --git a/src/SopsSync.ts b/src/SopsSync.ts
index f5ff0831..5ede7b49 100644
--- a/src/SopsSync.ts
+++ b/src/SopsSync.ts
@@ -365,7 +365,8 @@ export class SopsSync extends Construct {
         Format: sopsFileFormat,
         StringifiedValues: this.stringifiedValues,
         ParameterName: props.parameterName,
-        EncryptionKey: props.encryptionKey?.keyId,
+        EncryptionKey:
+          props.secret !== undefined ? undefined : props.encryptionKey?.keyId,
       },
     });
     this.versionId = cr.getAttString('VersionId');