diff --git a/src/libstd/sys/redox/ext/process.rs b/src/libstd/sys/redox/ext/process.rs
index 78917ea91886..4e669bbb2d7d 100644
--- a/src/libstd/sys/redox/ext/process.rs
+++ b/src/libstd/sys/redox/ext/process.rs
@@ -65,7 +65,7 @@ pub trait CommandExt {
     ///
     /// [`pre_exec`]: #tymethod.pre_exec
     #[stable(feature = "process_exec", since = "1.15.0")]
-    #[rustc_deprecated(since = "1.34.0", reason = "should be unsafe, use `pre_exec` instead")]
+    #[rustc_deprecated(since = "1.37.0", reason = "should be unsafe, use `pre_exec` instead")]
     fn before_exec<F>(&mut self, f: F) -> &mut process::Command
         where F: FnMut() -> io::Result<()> + Send + Sync + 'static
     {
diff --git a/src/libstd/sys/unix/ext/process.rs b/src/libstd/sys/unix/ext/process.rs
index 7cc5e9945938..da0507c65423 100644
--- a/src/libstd/sys/unix/ext/process.rs
+++ b/src/libstd/sys/unix/ext/process.rs
@@ -65,7 +65,7 @@ pub trait CommandExt {
     ///
     /// [`pre_exec`]: #tymethod.pre_exec
     #[stable(feature = "process_exec", since = "1.15.0")]
-    #[rustc_deprecated(since = "1.34.0", reason = "should be unsafe, use `pre_exec` instead")]
+    #[rustc_deprecated(since = "1.37.0", reason = "should be unsafe, use `pre_exec` instead")]
     fn before_exec<F>(&mut self, f: F) -> &mut process::Command
         where F: FnMut() -> io::Result<()> + Send + Sync + 'static
     {