diff --git a/Cargo.toml b/Cargo.toml
index f85c146..645f3d4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -21,7 +21,7 @@ edition = "2018"
 #
 # The first version of Cargo that supports this field was in Rust 1.56.0.
 # In older releases, the field will be ignored, and Cargo will display a warning.
-rust-version = "1.39"
+rust-version = "1.38"
 
 [lib]
 path = "lib.rs"
diff --git a/README.md b/README.md
index 4a650f1..78d825b 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,8 @@
       <img src="https://img.shields.io/gitter/room/slog-rs/slog.svg" alt="slog-rs Gitter Chat">
   </a>
 
-  <a href="https://blog.rust-lang.org/2019/11/07/Rust-1.39.0.html">
-      <img src="https://img.shields.io/badge/rust-1.39%2B-orange.svg" alt="Minimum Rust Version 1.38">
+  <a href="https://blog.rust-lang.org/2019/09/26/Rust-1.38.0.html">
+      <img src="https://img.shields.io/badge/rust-1.38%2B-orange.svg" alt="Minimum Rust Version 1.38">
   </a>
 </p>