diff --git a/.buckconfig.d/external_cells/facebook/folly/external_cell.buckconfig b/.buckconfig.d/external_cells/facebook/folly/external_cell.buckconfig
index 08f2ed298..82b835ecd 100644
--- a/.buckconfig.d/external_cells/facebook/folly/external_cell.buckconfig
+++ b/.buckconfig.d/external_cells/facebook/folly/external_cell.buckconfig
@@ -6,4 +6,4 @@ gh_facebook_folly = git
 
 [external_cell_gh_facebook_folly]
 git_origin = https://github.com/facebook/folly.git
-commit_hash = 7a747a50a4e97c57973a77ff0a74eb9c0fa5bb38
+commit_hash = d83089f0858b20bc3035ee27e2b2b2a62230f3df
diff --git a/.buckconfig.d/external_cells/facebookincubator/fizz/external_cell.buckconfig b/.buckconfig.d/external_cells/facebookincubator/fizz/external_cell.buckconfig
index 4f6338137..2ff29edae 100644
--- a/.buckconfig.d/external_cells/facebookincubator/fizz/external_cell.buckconfig
+++ b/.buckconfig.d/external_cells/facebookincubator/fizz/external_cell.buckconfig
@@ -6,4 +6,4 @@ gh_facebookincubator_fizz = git
 
 [external_cell_gh_facebookincubator_fizz]
 git_origin = https://github.com/facebookincubator/fizz.git
-commit_hash = cd1db8a034efcce07a44eefd941ac061a2993c64
+commit_hash = aecd5c408ca1a6ae65234a0d0de9edc25dc46565
diff --git a/build/deps/github_hashes/facebook/folly-rev.txt b/build/deps/github_hashes/facebook/folly-rev.txt
index dcf6cb166..443d592c4 100644
--- a/build/deps/github_hashes/facebook/folly-rev.txt
+++ b/build/deps/github_hashes/facebook/folly-rev.txt
@@ -1 +1 @@
-Subproject commit 7a747a50a4e97c57973a77ff0a74eb9c0fa5bb38
+Subproject commit d83089f0858b20bc3035ee27e2b2b2a62230f3df
diff --git a/build/deps/github_hashes/facebookincubator/fizz-rev.txt b/build/deps/github_hashes/facebookincubator/fizz-rev.txt
index a66ea9b03..288a26aca 100644
--- a/build/deps/github_hashes/facebookincubator/fizz-rev.txt
+++ b/build/deps/github_hashes/facebookincubator/fizz-rev.txt
@@ -1 +1 @@
-Subproject commit cd1db8a034efcce07a44eefd941ac061a2993c64
+Subproject commit aecd5c408ca1a6ae65234a0d0de9edc25dc46565