diff --git a/src/python/m5/debug.py b/src/python/m5/debug.py
index d808850cc8..787a39ece7 100644
--- a/src/python/m5/debug.py
+++ b/src/python/m5/debug.py
@@ -24,7 +24,7 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-from collections import Mapping
+from collections.abc import Mapping
 
 import _m5.debug
 from _m5.debug import SimpleFlag, CompoundFlag