diff --git a/.travis.yml b/.travis.yml
index 2095bc609c..99ae89a887 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,7 +13,7 @@ before_install:
   - sudo sh -c 'echo "deb [arch=amd64] http://apt-mo.trafficmanager.net/repos/dotnet/ trusty main" > /etc/apt/sources.list.d/dotnetdev.list'
   - sudo apt-key adv --keyserver apt-mo.trafficmanager.net --recv-keys 417A0893
   - sudo apt-get -qq update
-  - sudo apt-get install -y dotnet=1.0.0.001598-1
+  - sudo apt-get install -y dotnet=1.0.0.001638-1
 script:
   - dotnet restore
   - ./build.sh
diff --git a/README.md b/README.md
index 35f40c1dbf..a1de09dd21 100644
--- a/README.md
+++ b/README.md
@@ -78,7 +78,7 @@ Tested on Ubuntu 14.04.
 sudo sh -c 'echo "deb [arch=amd64] http://apt-mo.trafficmanager.net/repos/dotnet/ trusty main" > /etc/apt/sources.list.d/dotnetdev.list'
 sudo apt-key adv --keyserver apt-mo.trafficmanager.net --recv-keys 417A0893
 sudo apt-get update
-sudo apt-get install dotnet=1.0.0.001598-1
+sudo apt-get install dotnet=1.0.0.001638-1
 ```
 
 Then install the following additional build / debug tools:
@@ -104,7 +104,7 @@ An MSI installer also exists, but this script avoids touching your system.
 
 ```powershell
 Invoke-WebRequest -Uri https://raw.githubusercontent.com/dotnet/cli/rel/1.0.0/scripts/obtain/install.ps1 -OutFile install.ps1
-./install.ps1 -version 1.0.0.001598 -channel beta
+./install.ps1 -version 1.0.0.001638 -channel beta
 ```
 
 Note:
diff --git a/appveyor.yml b/appveyor.yml
index 357ddd1f2d..0c0378b22d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,7 @@ install:
   - git config --global url.git@github.com:.insteadOf https://github.com/
   - git submodule update --init --recursive -- src/monad src/windows-build src/Microsoft.PowerShell.Linux.Host/Modules/Pester
   - ps: Invoke-WebRequest -Uri https://raw.githubusercontent.com/dotnet/cli/rel/1.0.0/scripts/obtain/install.ps1 -OutFile install.ps1
-  - ps: ./install.ps1 -version 1.0.0.001598 -channel beta
+  - ps: ./install.ps1 -version 1.0.0.001638 -channel beta
 
 build_script:
   - ps: |