diff --git a/src/setup-ghidra-source.cmake b/src/setup-ghidra-source.cmake
index 90c9b3e..9d67e80 100644
--- a/src/setup-ghidra-source.cmake
+++ b/src/setup-ghidra-source.cmake
@@ -48,7 +48,7 @@ if("${sleigh_RELEASE_TYPE}" STREQUAL "HEAD")
   # TODO: CMake only likes numeric characters in the version string....
   set(ghidra_head_version "11.1")
   set(ghidra_version "${ghidra_head_version}")
-  set(ghidra_head_git_tag "317a8814883804f0c4f18c64d97411b1c6d6283e")
+  set(ghidra_head_git_tag "2a7897c3661e03db2e6c1e0e42d2362b654790a2")
   set(ghidra_git_tag "${ghidra_head_git_tag}")
   set(ghidra_shallow FALSE)
   set(ghidra_patches
diff --git a/src/spec_files_HEAD.cmake b/src/spec_files_HEAD.cmake
index b998b23..c5e586a 100644
--- a/src/spec_files_HEAD.cmake
+++ b/src/spec_files_HEAD.cmake
@@ -28,6 +28,8 @@ set(spec_file_list
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/ARM/data/languages/ARM7_le.slaspec"
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/ARM/data/languages/ARM8_be.slaspec"
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/ARM/data/languages/ARM8_le.slaspec"
+  "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/ARM/data/languages/ARM8m_be.slaspec"
+  "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/ARM/data/languages/ARM8m_le.slaspec"
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/Atmel/data/languages/avr32a.slaspec"
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/Atmel/data/languages/avr8.slaspec"
   "${ghidrasource_SOURCE_DIR}/Ghidra/Processors/Atmel/data/languages/avr8e.slaspec"