diff --git a/.travis.yml b/.travis.yml
index 16c0690..ec77cfb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,7 +7,7 @@ matrix:
       #   # will have to be commented out the following line
       #   - SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
     - rust: beta
-    - rust: 1.23.0
+    - rust: 1.25.0
 
 install:
   - rvm use 2.3
diff --git a/appveyor.yml b/appveyor.yml
index ecd74a8..16c33c7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,12 +5,12 @@ environment:
   matrix:
     - TARGET: x86_64-pc-windows-msvc
       BITS: 64
-      RUSTVER: 1.23.0
+      RUSTVER: 1.25.0
       ruby_version: "23-x64"
       devkit: C:\Ruby23-x64\DevKit
     - TARGET: x86_64-pc-windows-msvc
       BITS: 64
-      RUSTVER: 1.23.0
+      RUSTVER: 1.25.0
       ruby_version: "23"
       devkit: C:\Ruby23\DevKit