diff --git a/src/ui/new-image-dialog.ui b/src/ui/new-image-dialog.ui
index b5055283..01cda62f 100644
--- a/src/ui/new-image-dialog.ui
+++ b/src/ui/new-image-dialog.ui
@@ -3,7 +3,7 @@
 
   <object class="GtkAdjustment" id="adj_width">
     <property name="lower">1</property>
-    <property name="upper">4096</property>
+    <property name="upper">9999</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
     <property name="value">10</property>
@@ -11,7 +11,7 @@
 
   <object class="GtkAdjustment" id="adj_height">
     <property name="lower">1</property>
-    <property name="upper">4096</property>
+    <property name="upper">9999</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
     <property name="value">10</property>
diff --git a/src/ui/preferences.ui b/src/ui/preferences.ui
index 0a400848..e647ba7a 100644
--- a/src/ui/preferences.ui
+++ b/src/ui/preferences.ui
@@ -3,7 +3,7 @@
 
   <object class="GtkAdjustment" id="adj_width">
     <property name="lower">1</property>
-    <property name="upper">4096</property>
+    <property name="upper">9999</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
     <property name="value">10</property>
@@ -11,7 +11,7 @@
 
   <object class="GtkAdjustment" id="adj_height">
     <property name="lower">1</property>
-    <property name="upper">4096</property>
+    <property name="upper">9999</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
     <property name="value">10</property>