diff --git a/launcher/ui/pages/global/JavaPage.ui b/launcher/ui/pages/global/JavaPage.ui
index 19e23eba9..734612375 100644
--- a/launcher/ui/pages/global/JavaPage.ui
+++ b/launcher/ui/pages/global/JavaPage.ui
@@ -57,7 +57,7 @@
              <number>128</number>
             </property>
             <property name="maximum">
-             <number>65536</number>
+             <number>1048576</number>
             </property>
             <property name="singleStep">
              <number>128</number>
@@ -89,7 +89,7 @@
              <number>128</number>
             </property>
             <property name="maximum">
-             <number>65536</number>
+             <number>1048576</number>
             </property>
             <property name="singleStep">
              <number>128</number>
diff --git a/launcher/ui/pages/instance/InstanceSettingsPage.ui b/launcher/ui/pages/instance/InstanceSettingsPage.ui
index 43488aa2c..2063dc559 100644
--- a/launcher/ui/pages/instance/InstanceSettingsPage.ui
+++ b/launcher/ui/pages/instance/InstanceSettingsPage.ui
@@ -168,7 +168,7 @@
              <number>128</number>
             </property>
             <property name="maximum">
-             <number>65536</number>
+             <number>1048576</number>
             </property>
             <property name="singleStep">
              <number>128</number>
@@ -197,7 +197,7 @@
              <number>128</number>
             </property>
             <property name="maximum">
-             <number>65536</number>
+             <number>1048576</number>
             </property>
             <property name="singleStep">
              <number>128</number>