diff --git a/configs/microblazeel-zephyr-elf.config b/configs/microblazeel-zephyr-elf.config
index 324bd4a2..6f2d19fc 100644
--- a/configs/microblazeel-zephyr-elf.config
+++ b/configs/microblazeel-zephyr-elf.config
@@ -7,4 +7,4 @@ CT_TARGET_VENDOR="zephyr"
 CT_MULTILIB=y
 # FIXME: Picolibc is disabled for microblazeel due to build failure
 #        (see GitHub issue #639).
-CT_COMP_LIBS_PICOLIBC=n
+CT_COMP_LIBS_PICOLIBC=y
diff --git a/picolibc b/picolibc
index 93b5d5f2..920bc6f0 160000
--- a/picolibc
+++ b/picolibc
@@ -1 +1 @@
-Subproject commit 93b5d5f2ad44867b60267417cd6d6250dbf68983
+Subproject commit 920bc6f0248a9dbf930dfe7bca2f18408ba6a693