diff --git a/requirements.txt b/requirements.txt
index 57e1bb6..ba57f92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@
 mbed-host-tests>=1.4.4,<2.0
 mbed-greentea>=0.2.24,<2.0
 beautifulsoup4>=4,<=4.6.3
-pyelftools>=0.24,<=0.25
+pyelftools>=0.27,<=0.28
 pycryptodome>=3.9.3,<4
 pyusb>=1.0.0,<2.0.0
 hidapi>=0.7.99,<0.8.0;platform_system!="Linux"