diff --git a/.travis.yml b/.travis.yml
index 3303ac5..cb1b148 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ rust:
   - stable
   - beta
   - nightly
-  - 1.15.1
+  - 1.16
 os:
   - linux
   - osx
@@ -18,8 +18,5 @@ before_install:
   - git submodule update --init --recursive
 
 script:
-  # 1.15 doesn't yet support cargo build --all
-  - cd imgui-sys && cargo build --verbose && cd ..
-  - cd imgui-glium-renderer && cargo build --verbose && cd ..
-  - cargo build --verbose
+  - cargo build --all --verbose
   - cargo test --all --verbose
diff --git a/README.markdown b/README.markdown
index 93fda3a..c2bc5b0 100644
--- a/README.markdown
+++ b/README.markdown
@@ -2,7 +2,7 @@
 
 **Still fairly experimental!**
 
-Minimum Rust version: 1.15
+Minimum Rust version: 1.16
 
 [![Build Status](https://travis-ci.org/Gekkio/imgui-rs.svg?branch=master)](https://travis-ci.org/Gekkio/imgui-rs)
 [![Latest release on crates.io](https://meritbadge.herokuapp.com/imgui)](https://crates.io/crates/imgui)