diff --git a/tools/update-deps b/tools/update-deps
index 7e0bbc15..2b34033c 100755
--- a/tools/update-deps
+++ b/tools/update-deps
@@ -21,7 +21,7 @@ if not os.path.isdir(kWork):
 os.chdir(kWork)
 
 kUvRepository = 'https://github.com/libuv/libuv.git'
-kUvBranch = 'v1.16.1'
+kUvBranch = 'v1.18.0'
 kUvWork = 'uv'
 
 kV8Repository = 'https://github.com/v8/v8.git'
@@ -29,7 +29,7 @@ kV8Branch = 'branch-heads/6.3'
 kV8Work = 'v8'
 
 kLmdbRepository = 'https://github.com/LMDB/lmdb.git'
-kLmdbBranch = 'LMDB_0.9.19'
+kLmdbBranch = 'LMDB_0.9.21'
 kLmdbWork = 'lmdb'
 
 cores = multiprocessing.cpu_count()