diff --git a/requirements.txt b/requirements.txt
index 321bb819..b34835a9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,5 @@
 bobs_lazy_logging>=0.0.2
 eth_retry>=0.1.15,<0.2
 multicall>=0.6.2
+# web3 5.29 thru 5.31.2 are unable to use async provider in subthreads
+web3>=5.27,!=5.29.*,!=5.30.*,!=5.31.1,!=5.31.2