diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c06d8560e..ad2f74254 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,16 +32,13 @@ jobs:
           filters: |
             x4:
               - '.github/workflows/*.yml'
+              - 'modules/iris'
               - 'CMakeLists.txt'
-              - 'include/iris/config.hpp'
-              - 'include/iris/core/**/*.hpp'
               - 'include/iris/x4.hpp'
               - 'include/iris/x4/**/*'
               - 'test/CMakeLists.txt'
               - 'test/x4/**/*'
 
-  # ^^^ TODO: move `config.hpp` and `core/*` to `iris-cpp/iris` and remove the corresponding paths from above
-
   build:
     name: "[${{ matrix.cpp_version.name }}] ${{ matrix.x4_component }} | ${{ matrix.compiler.toolset }}-${{ matrix.compiler.version }} (${{ matrix.build_type.name }}) @ ${{ matrix.os.name }}-${{ matrix.os.version }}"
 
diff --git a/modules/iris b/modules/iris
index 0a7c23166..a9359a6eb 160000
--- a/modules/iris
+++ b/modules/iris
@@ -1 +1 @@
-Subproject commit 0a7c2316613f79399f63ce5e54d7f22be5f78245
+Subproject commit a9359a6ebd84a27a3e44abfa243ddabdc04bcb6d