diff --git a/packages/c/cmake/atsdk.cmake b/packages/c/cmake/atsdk.cmake
index aaaccedee..2c70de251 100644
--- a/packages/c/cmake/atsdk.cmake
+++ b/packages/c/cmake/atsdk.cmake
@@ -3,7 +3,7 @@ if(NOT atsdk_FOUND)
   FetchContent_Declare(
     atsdk
     GIT_REPOSITORY https://github.com/atsign-foundation/at_c.git
-    GIT_TAG 292e3842bf13e1479ed45e1a02821b806156218d
+    GIT_TAG 0438b3c1752259605b96551806ec339fbaf17b53
   )
   FetchContent_MakeAvailable(atsdk)
   install(TARGETS atclient atchops atlogger)