diff --git a/rpcs3/rpcs3qt/update_manager.cpp b/rpcs3/rpcs3qt/update_manager.cpp
index 01ab77ab37..6ad460d29d 100644
--- a/rpcs3/rpcs3qt/update_manager.cpp
+++ b/rpcs3/rpcs3qt/update_manager.cpp
@@ -447,19 +447,19 @@ void update_manager::update(bool auto_accept)
 				changelog_browser->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 				changelog_browser->setHtml(QStringLiteral("<h3>%0</h3>%1").arg(tr("Changelog:"), changelog_html));
 
-				// Measure height for 6 entries directly
+				// Measure height for 6 entries directly.
 				int browser_height;
 
 				if (changelog_count > 6)
 				{
 					// Temporarily render only 6 entries to get exact pixel height
 					changelog_browser->setHtml(QStringLiteral("<h3>%0</h3>%1").arg(tr("Changelog:"), changelog_html_capped));
-					browser_height = static_cast<int>(changelog_browser->document()->size().height()) + 10;
+					browser_height = static_cast<int>(changelog_browser->document()->size().height());
 					changelog_browser->setHtml(QStringLiteral("<h3>%0</h3>%1").arg(tr("Changelog:"), changelog_html));
 				}
 				else
 				{
-					browser_height = static_cast<int>(changelog_browser->document()->size().height()) + 10;
+					browser_height = static_cast<int>(changelog_browser->document()->size().height());
 				}
 
 				changelog_browser->setFixedSize(500, browser_height);
@@ -472,6 +472,9 @@ void update_manager::update(bool auto_accept)
 				grid->addWidget(toggle_btn, row++, 0, 1, cols);
 				grid->addWidget(changelog_browser, row++, 0, 1, cols);
 
+				// Pre-size dialog so it doesn't resize when toggling
+				mb.setMinimumWidth(540);
+
 				QObject::connect(toggle_btn, &QPushButton::clicked, [changelog_browser, toggle_btn, &mb, show_text, hide_text]()
 				{
 					const bool becoming_visible = !changelog_browser->isVisible();