diff --git a/.cirrus.yml b/.cirrus.yml
index bdc44e0c93c..604fe3e120e 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -2,7 +2,7 @@ freebsd_instance:
   image: freebsd-12-4-release-amd64
 env:
   RUST_STABLE: stable
-  RUST_NIGHTLY: nightly-2022-10-25
+  RUST_NIGHTLY: nightly-2022-12-27
   RUSTFLAGS: -D warnings
 
 # Test FreeBSD in a full VM on cirrus-ci.com.  Test the i686 target too, in the
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3be5ef92aea..cabbe2e3b8d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ env:
   RUST_BACKTRACE: 1
   # Change to specific Rust release to pin
   rust_stable: stable
-  rust_nightly: nightly-2022-11-03
+  rust_nightly: nightly-2022-12-27
   rust_clippy: 1.65.0
   # When updating this, also update:
   # - README.md