diff --git a/requirements.txt b/requirements.txt
index 3223a48d7b..36b860b666 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,3 +8,4 @@ pyDeprecate
 pandas>=1.1.0
 jsonargparse[signatures]>=3.17.0
 click>=7.1.2
+protobuf<=3.20.1
diff --git a/requirements/datatype_tabular.txt b/requirements/datatype_tabular.txt
index 6541426bba..b124b00994 100644
--- a/requirements/datatype_tabular.txt
+++ b/requirements/datatype_tabular.txt
@@ -2,3 +2,4 @@ scikit-learn
 pytorch-forecasting>=0.9.0
 pytorch-tabular==0.7.0
 torchmetrics<0.8.0  # pytorch-tabular pins PL so we force a compatible TM version
+omegaconf<=2.1.1