diff --git a/ci-test.sh b/ci-test.sh
index ec44e45..83497c1 100644
--- a/ci-test.sh
+++ b/ci-test.sh
@@ -3,6 +3,9 @@ set -euo pipefail
 
 DEFAULTFLAGS="-Zrandomize-layout -Zmiri-strict-provenance"
 
+# make sure we keep using the current toolchain even in subdirs that have a toolchain file
+export RUSTUP_TOOLCHAIN=$(rustup show active-toolchain | cut -f 1 -d' ')
+
 # apply our patch
 rm -rf rust-src-patched
 cp -a $(rustc --print sysroot)/lib/rustlib/src/rust/ rust-src-patched
diff --git a/rust-version b/rust-version
index 4994bc5..6e6b47d 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-nightly-2025-02-01
+nightly-2025-02-11