diff --git a/src/react16.12/fixtures/dom/yarn.lock b/src/react16.12/fixtures/dom/yarn.lock
index 382c44938..a128ec8bc 100644
--- a/src/react16.12/fixtures/dom/yarn.lock
+++ b/src/react16.12/fixtures/dom/yarn.lock
@@ -2723,7 +2723,7 @@ faye-websocket@~0.11.0:
 
 fb-watchman@^1.8.0:
   version "1.9.0"
-  resolved "http://registry.npmjs.org/fb-watchman/-/fb-watchman-1.9.0.tgz#6f268f1f347a6b3c875d1e89da7e1ed79adfc0ec"
+  resolved "https://registry.npmjs.org/fb-watchman/-/fb-watchman-1.9.0.tgz#6f268f1f347a6b3c875d1e89da7e1ed79adfc0ec"
   dependencies:
     bser "^1.0.2"
 
@@ -3597,7 +3597,7 @@ is-plain-obj@^1.0.0:
 
 is-posix-bracket@^0.1.0:
   version "0.1.1"
-  resolved "http://registry.npmjs.org/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
+  resolved "https://registry.npmjs.org/is-posix-bracket/-/is-posix-bracket-0.1.1.tgz#3334dc79774368e92f016e6fbc0a88f5cd6e6bc4"
 
 is-primitive@^2.0.0:
   version "2.0.0"
@@ -6278,8 +6278,9 @@ string_decoder@~1.0.3:
     safe-buffer "~5.1.0"
 
 stringstream@~0.0.4:
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.5.tgz#4e484cd4de5a0bbbee18e46307710a8a81621878"
+  version "0.0.6"
+  resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
+  integrity sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==
 
 strip-ansi@3.0.1, strip-ansi@^3.0.0, strip-ansi@^3.0.1:
   version "3.0.1"