diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index b037f0e77f..4df97fbc89 100644
--- a/requirements_dev_optional.txt
+++ b/requirements_dev_optional.txt
@@ -18,5 +18,5 @@ pytest-cov==2.12.1
 pytest-doctestplus==0.10.1
 h5py==3.3.0
 s3fs==2021.6.0
-fsspec==2021.6.0
+fsspec==2021.7.0
 moto[server]>=1.3.14