diff --git a/ports/imgui/CONTROL b/ports/imgui/CONTROL
index a973b215b4c..8f310b04f52 100644
--- a/ports/imgui/CONTROL
+++ b/ports/imgui/CONTROL
@@ -1,3 +1,3 @@
 Source: imgui
-Version: 1.65
+Version: 1.66
 Description: Bloat-free Immediate Mode Graphical User interface for C++ with minimal dependencies.
diff --git a/ports/imgui/portfile.cmake b/ports/imgui/portfile.cmake
index 1f427a0680f..8f545204214 100644
--- a/ports/imgui/portfile.cmake
+++ b/ports/imgui/portfile.cmake
@@ -3,8 +3,8 @@ include(vcpkg_common_functions)
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO ocornut/imgui
-    REF v1.65
-    SHA512  f68bbf84b781ea3e409beccb02b0bf8fe78d56e1ce7d8fce785f629758310ae75c9624ed62b2b6194e50f00cc7cc17f643191f4fbbad9236aa2e82a9ea4f6aac
+    REF v1.66
+    SHA512  85d41e6fa2141da87b72e5c39d23fe285bea086d6dd758a5ec048a495c29bbcf0a49ee1e9f442d5db3452fd0f28d1e52a2c41b5402cbbaa3ad6612818aaea670
     HEAD_REF master
 )
 
@@ -21,5 +21,4 @@ vcpkg_install_cmake()
 vcpkg_copy_pdbs()
 vcpkg_fixup_cmake_targets(CONFIG_PATH share/imgui)
 
-file(COPY ${SOURCE_PATH}/LICENSE.txt DESTINATION ${CURRENT_PACKAGES_DIR}/share/imgui)
-file(RENAME ${CURRENT_PACKAGES_DIR}/share/imgui/LICENSE.txt ${CURRENT_PACKAGES_DIR}/share/imgui/copyright)
+configure_file(${SOURCE_PATH}/LICENSE.txt ${CURRENT_PACKAGES_DIR}/share/imgui/copyright COPYONLY)