diff --git a/cachelib/external/fizz b/cachelib/external/fizz
index 0b8009c800..677cd137d4 160000
--- a/cachelib/external/fizz
+++ b/cachelib/external/fizz
@@ -1 +1 @@
-Subproject commit 0b8009c8006b00d4a1e38ab2f364a28d1ef6d70e
+Subproject commit 677cd137d40aa1d35380e827aa8717972f6f3760
diff --git a/cachelib/external/folly b/cachelib/external/folly
index 949ecec6e8..9256624c12 160000
--- a/cachelib/external/folly
+++ b/cachelib/external/folly
@@ -1 +1 @@
-Subproject commit 949ecec6e84eaa395c6a1fafc22fe8a8b59434dd
+Subproject commit 9256624c12d8a7bea1b7b83ae36789ba7b75af91
diff --git a/cachelib/external/wangle b/cachelib/external/wangle
index ea96fe0fa0..beeb9478a0 160000
--- a/cachelib/external/wangle
+++ b/cachelib/external/wangle
@@ -1 +1 @@
-Subproject commit ea96fe0fa008c94dd347eb00b9d483ab67c170f0
+Subproject commit beeb9478a0321190791d9816f7ffe9a37d02d429
diff --git a/examples/simple_cache/build.sh b/examples/simple_cache/build.sh
index 041545fd28..1ba724f8c2 100755
--- a/examples/simple_cache/build.sh
+++ b/examples/simple_cache/build.sh
@@ -24,7 +24,7 @@ CLCMAKE="$CLBASE/cachelib/cmake"
 # After ensuring we are in the correct directory, set the installation prefix"
 PREFIX="$CLBASE/opt/cachelib/"
 
-CMAKE_PARAMS="-DCMAKE_INSTALL_PREFIX='$PREFIX' -DCMAKE_MODULE_PATH='$CLCMAKE'"
+CMAKE_PARAMS="-DCMAKE_INSTALL_PREFIX='$PREFIX' -DCMAKE_MODULE_PATH='$CLCMAKE' -DCMAKE_BUILD_TYPE=Debug"
 
 CMAKE_PREFIX_PATH="$PREFIX/lib/cmake:$PREFIX/lib64/cmake:$PREFIX/lib:$PREFIX/lib64:$PREFIX:${CMAKE_PREFIX_PATH:-}"
 export CMAKE_PREFIX_PATH