diff --git a/scripts/flatpak/modules/22-shaderc.json b/scripts/flatpak/modules/22-shaderc.json
index a7909582a..6a5955dc9 100644
--- a/scripts/flatpak/modules/22-shaderc.json
+++ b/scripts/flatpak/modules/22-shaderc.json
@@ -3,6 +3,7 @@
   "buildsystem": "cmake-ninja",
   "builddir": true,
   "config-opts": [
+    "-DCMAKE_BUILD_TYPE=Release",
     "-DSHADERC_SKIP_TESTS=ON",
     "-DSHADERC_SKIP_EXAMPLES=ON",
     "-DSHADERC_SKIP_COPYRIGHT_CHECK=ON"
diff --git a/scripts/flatpak/org.duckstation.DuckStation.json b/scripts/flatpak/org.duckstation.DuckStation.json
index a1295aa86..e8db5b642 100644
--- a/scripts/flatpak/org.duckstation.DuckStation.json
+++ b/scripts/flatpak/org.duckstation.DuckStation.json
@@ -1,7 +1,7 @@
 {
   "app-id": "org.duckstation.DuckStation",
   "runtime": "org.kde.Platform",
-  "runtime-version": "6.6",
+  "runtime-version": "6.7",
   "sdk": "org.kde.Sdk",
   "sdk-extensions": [
     "org.freedesktop.Sdk.Extension.llvm17"