diff --git a/modules/swagger-codegen/src/main/resources/haskell-servant/stack.mustache b/modules/swagger-codegen/src/main/resources/haskell-servant/stack.mustache
index e06adf4ba3d..486877454c2 100644
--- a/modules/swagger-codegen/src/main/resources/haskell-servant/stack.mustache
+++ b/modules/swagger-codegen/src/main/resources/haskell-servant/stack.mustache
@@ -1,3 +1,3 @@
-resolver: lts-5.5
+resolver: lts-5.11
 packages:
 - '.'