diff --git a/ci/pin-msrv.sh b/ci/pin-msrv.sh
index c2d7d3349..4943cb1b7 100755
--- a/ci/pin-msrv.sh
+++ b/ci/pin-msrv.sh
@@ -24,3 +24,4 @@ cargo update -p unicode-width --precise "0.1.13"
 cargo update -p native-tls --precise "0.2.13"
 cargo update -p flate2 --precise "1.0.35"
 cargo update -p bzip2-sys --precise "0.1.12"
+cargo update -p ring --precise "0.17.12"