diff --git a/packages/light.js/example-react/yarn.lock b/packages/light.js/example-react/yarn.lock
index e4ab9def..3f848864 100644
--- a/packages/light.js/example-react/yarn.lock
+++ b/packages/light.js/example-react/yarn.lock
@@ -1394,19 +1394,19 @@
   resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-1.1.3.tgz#2b5a3ab3f918cca48a8c754c08168e3f03eba61b"
   integrity sha512-shAmDyaQC4H92APFoIaVDHCx5bStIocgvbwQyxPRrbUY20V1EYTbSDchWbuwlMG3V17cprZhA6+78JfB+3DTPw==
 
-"@parity/abi@^5.1.16":
-  version "5.1.16"
-  resolved "https://registry.yarnpkg.com/@parity/abi/-/abi-5.1.16.tgz#6bea8ecef4dec47d285337eb1863a34e261d1b5b"
-  integrity sha512-CmEj8j4gwAIda5yzcgCv9M+i1Mdms+cEJko+r5JVq5CdxdVvGURXdx+4zsqzI/0EUUoTpikXiU9mgNZlk+xSlw==
+"@parity/abi@^5.1.19":
+  version "5.1.19"
+  resolved "https://registry.yarnpkg.com/@parity/abi/-/abi-5.1.19.tgz#7d3b5f994e0a8f4f32a81e11cbf4aa71075aa6b1"
+  integrity sha512-V6BSPFKmD2RY7iFWpi6YDTAzDz7Kyc0MuUYmlUjukldLNPCB2cvOZvoBP6ETck6nGNa1nMU6HWd0PFmuvi70HQ==
   dependencies:
     bignumber.js "^8.0.1"
     js-sha3 "0.8.0"
     utf8 "^3.0.0"
 
-"@parity/api@../../api", "@parity/api@^5.1.16":
-  version "5.1.16"
+"@parity/api@../../api", "@parity/api@^5.1.19":
+  version "5.1.19"
   dependencies:
-    "@parity/abi" "^5.1.16"
+    "@parity/abi" "^5.1.19"
     bignumber.js "^8.0.1"
     blockies "0.0.2"
     es6-error "4.0.2"
@@ -1419,16 +1419,16 @@
     websocket "^1.0.25"
 
 "@parity/light.js-react@../../light.js-react":
-  version "5.1.16"
+  version "5.1.19"
   dependencies:
     recompose "^0.30.0"
     symbol-observable "^1.2.0"
 
 "@parity/light.js@../":
-  version "5.1.16"
+  version "5.1.19"
   dependencies:
-    "@parity/abi" "^5.1.16"
-    "@parity/api" "^5.1.16"
+    "@parity/abi" "^5.1.19"
+    "@parity/api" "^5.1.19"
     async-retry "^1.2.3"
     bignumber.js "^8.0.1"
     debug "^4.1.0"
@@ -7340,9 +7340,9 @@ memory-fs@^0.4.0, memory-fs@^0.4.1:
     readable-stream "^2.0.1"
 
 merge-deep@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/merge-deep/-/merge-deep-3.0.2.tgz#f39fa100a4f1bd34ff29f7d2bf4508fbb8d83ad2"
-  integrity sha512-T7qC8kg4Zoti1cFd8Cr0M+qaZfOwjlPDEdZIIPPB2JZctjaPM4fX+i7HOId69tAti2fvO6X5ldfYUONDODsrkA==
+  version "3.0.3"
+  resolved "https://registry.yarnpkg.com/merge-deep/-/merge-deep-3.0.3.tgz#1a2b2ae926da8b2ae93a0ac15d90cd1922766003"
+  integrity sha512-qtmzAS6t6grwEkNrunqTBdn0qKwFgNWvlxUbAV8es9M7Ot1EbyApytCnvE0jALPa46ZpKDUo527kKiaWplmlFA==
   dependencies:
     arr-union "^3.1.0"
     clone-deep "^0.2.4"