diff --git a/check-grammars-crates.sh b/check-grammars-crates.sh
index 6ec7a5606..d2c3e4608 100755
--- a/check-grammars-crates.sh
+++ b/check-grammars-crates.sh
@@ -54,7 +54,7 @@ fi
 
 # Install json minimal tests
 JMT_LINK="https://github.com/Luni-4/json-minimal-tests/releases/download"
-JMT_VERSION="0.1.8"
+JMT_VERSION="0.1.9"
 curl -L "$JMT_LINK/v$JMT_VERSION/json-minimal-tests-linux.tar.gz" |
 tar xz -C $CARGO_HOME/bin