diff --git a/.npmrc b/.npmrc
index e742cbc8367..4393bfa8b41 100644
--- a/.npmrc
+++ b/.npmrc
@@ -1,5 +1,5 @@
 runtime = node
 target_arch = x64
-brave_electron_version = 2.58.2
+brave_electron_version = 2.58.3
 chromedriver_version = 2.27
 target = v7.4.0
diff --git a/tools/cibuild.py b/tools/cibuild.py
index c0dc4db76f5..f77eaea2bc6 100755
--- a/tools/cibuild.py
+++ b/tools/cibuild.py
@@ -4,7 +4,7 @@
 import subprocess
 import sys
 import os.path
-MUON_VERSION = '2.58.2'
+MUON_VERSION = '2.58.3'
 CHROMEDRIVER_VERSION = '2.27'
 SOURCE_ROOT = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
 TARGET_ARCH= os.environ['TARGET_ARCH'] if os.environ.has_key('TARGET_ARCH') else 'x64'