diff --git a/config.yml b/config.yml
index 2b1385a..759707d 100644
--- a/config.yml
+++ b/config.yml
@@ -18,4 +18,8 @@ library: okhttp-gson
 # Do not include timestamps in the generated files to avoid unnecessary diffs
 hideGenerationTimestamp: true
 # Allow unknown properties to avoid breaking when the API adds new fields, and we haven't updated the SDK yet
-disallowAdditionalPropertiesIfNotPresent: false
\ No newline at end of file
+disallowAdditionalPropertiesIfNotPresent: false
+typeMappings:
+  integer+bigint: java.math.BigInteger
+importMappings:
+  BigInteger: java.math.BigInteger
\ No newline at end of file