diff --git a/.travis.yml b/.travis.yml
index 32176fe5..416603ba 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,11 +12,11 @@ env:
 
 jobs:
   include:
-    - name: "Linux, 1.33.0"
-      rust: 1.33.0
+    - name: "Linux, 1.34.0"
+      rust: 1.34.0
 
-    - name: "OSX, 1.33.0"
-      rust: 1.33.0
+    - name: "OSX, 1.34.0"
+      rust: 1.34.0
       os: osx
 
     - name: "Linux, stable"
diff --git a/README.md b/README.md
index e5fdf9ab..456c2450 100644
--- a/README.md
+++ b/README.md
@@ -61,7 +61,7 @@ to switch to a custom implementation with a support of your target.
 
 ## Minimum Supported Rust Version
 
-This crate requires Rust 1.33.0 or later.
+This crate requires Rust 1.34.0 or later.
 
 # License
 
diff --git a/appveyor.yml b/appveyor.yml
index ef628a52..b012acdc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -21,7 +21,7 @@ environment:
 
   matrix:
   - TARGET: x86_64-pc-windows-msvc
-    CHANNEL: 1.33.0
+    CHANNEL: 1.34.0
   - TARGET: x86_64-pc-windows-msvc
     CHANNEL: stable
   - TARGET: x86_64-pc-windows-msvc