diff --git a/Components/Overlay/CMakeLists.txt b/Components/Overlay/CMakeLists.txt
index 71c8a410b29..56295a77c49 100644
--- a/Components/Overlay/CMakeLists.txt
+++ b/Components/Overlay/CMakeLists.txt
@@ -19,11 +19,11 @@ list(APPEND HEADER_FILES
 file(GLOB SOURCE_FILES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp")
 
 if(OGRE_BUILD_COMPONENT_OVERLAY_IMGUI)
-  set(IMGUI_DIR "${PROJECT_BINARY_DIR}/imgui-1.90.9" CACHE PATH "")
+  set(IMGUI_DIR "${PROJECT_BINARY_DIR}/imgui-1.91.0" CACHE PATH "")
   if(NOT EXISTS ${IMGUI_DIR})
     message(STATUS "Downloading imgui")
     file(DOWNLOAD
-        https://github.com/ocornut/imgui/archive/v1.90.9.tar.gz
+        https://github.com/ocornut/imgui/archive/v1.91.0.tar.gz
         ${PROJECT_BINARY_DIR}/imgui.tar.gz)
     execute_process(COMMAND ${CMAKE_COMMAND}
         -E tar xf imgui.tar.gz WORKING_DIRECTORY ${PROJECT_BINARY_DIR})
@@ -77,6 +77,8 @@ if(OGRE_BUILD_COMPONENT_OVERLAY_IMGUI)
       COMPILE_FLAGS "-Wno-cast-qual")
     set_source_files_properties(${IMGUI_DIR}/imgui.cpp PROPERTIES
       COMPILE_FLAGS "-Wno-cast-qual -Wno-unused-variable")
+    set_source_files_properties(${IMGUI_DIR}/imgui_demo.cpp PROPERTIES
+      COMPILE_FLAGS "-Wno-cast-qual")
     if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
       set_property(SOURCE ${IMGUI_DIR}/misc/freetype/imgui_freetype.cpp
         APPEND PROPERTY COMPILE_OPTIONS "-Wno-unknown-warning-option")
diff --git a/Components/Overlay/include/ImGui.i b/Components/Overlay/include/ImGui.i
index f63e1430fc5..046e2a9fc71 100644
--- a/Components/Overlay/include/ImGui.i
+++ b/Components/Overlay/include/ImGui.i
@@ -21,6 +21,8 @@
 %ignore ImGui::SetTooltipV;
 %ignore ImGui::SetItemTooltipV;
 %ignore ImGuiTextBuffer::appendfv;
+%ignore ImGui::DebugLogV;
+%ignore ImGuiSelectionBasicStorage;
 
 %typemap(in) ImTextureID {
     size_t argp;