diff --git a/.gitmodules b/.gitmodules
index 2135412..1e4e333 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,9 @@
 [submodule "sim/mbedtls"]
 	path = ext/mbedtls
 	url = https://github.com/ARMmbed/mbedtls
+[submodule "boot/cypress/libs/mtb-pdl-cat1"]
+	path = boot/cypress/libs/mtb-pdl-cat1
+	url = https://github.com/cypresssemiconductorco/mtb-pdl-cat1.git
 [submodule "boot/cypress/libs/pdl/psoc6pdl"]
 	path = boot/cypress/libs/pdl/psoc6pdl
 	url = https://github.com/cypresssemiconductorco/psoc6pdl.git
diff --git a/boot/cypress/libs/core-lib b/boot/cypress/libs/core-lib
index 6535677..a0f53cd 160000
--- a/boot/cypress/libs/core-lib
+++ b/boot/cypress/libs/core-lib
@@ -1 +1 @@
-Subproject commit 653567762b7aba1ef6e11a1b604cb3bd6b0a9d9b
+Subproject commit a0f53cdda39a373c45cdbf9f853c8018c1172461
diff --git a/boot/cypress/libs/mtb-pdl-cat1 b/boot/cypress/libs/mtb-pdl-cat1
new file mode 160000
index 0000000..55b5a54
--- /dev/null
+++ b/boot/cypress/libs/mtb-pdl-cat1
@@ -0,0 +1 @@
+Subproject commit 55b5a5457195ad2a2a02e0a98ca72a9333e26397