diff --git a/gtk/icons/scalable/actions/value-decrease-symbolic.png b/gtk/icons/scalable/actions/value-decrease-symbolic.svg
similarity index 100%
rename from gtk/icons/scalable/actions/value-decrease-symbolic.png
rename to gtk/icons/scalable/actions/value-decrease-symbolic.svg
diff --git a/gtk/icons/scalable/actions/value-increase-symbolic.png b/gtk/icons/scalable/actions/value-increase-symbolic.svg
similarity index 100%
rename from gtk/icons/scalable/actions/value-increase-symbolic.png
rename to gtk/icons/scalable/actions/value-increase-symbolic.svg