diff --git a/gridss.wdl b/gridss.wdl
index 2e68ed880dcc4c90f1ee9ea3102382b4dfa6d0e5..13596a48e8c503449a670a9ab74cc82ab12a0c4e 100644
--- a/gridss.wdl
+++ b/gridss.wdl
@@ -93,7 +93,7 @@ task GRIDSS {
         File? blacklistBed
         File? gridssProperties
 
-        Int jvmHeapSizeGb = 85
+        Int jvmHeapSizeGb = 185
         Int threads = 8
         Int timeMinutes = ceil(4320 / threads) + 10
         String dockerImage = "quay.io/biocontainers/gridss:2.12.2--h270b39a_0"