diff --git a/.ci_extras/pin-crate-vers-nightly.sh b/.ci_extras/pin-crate-vers-nightly.sh
index b20a029b..87d75437 100755
--- a/.ci_extras/pin-crate-vers-nightly.sh
+++ b/.ci_extras/pin-crate-vers-nightly.sh
@@ -4,3 +4,5 @@ set -eux
 
 # Pin some dependencies to specific versions for the nightly toolchain.
 cargo update -p proc-macro2 --precise 1.0.63
+# https://github.com/tkaitchuck/aHash/issues/200
+cargo update -p ahash --precise 0.8.7