diff --git a/.github/configs/feature.yaml b/.github/configs/feature.yaml
index 5aab68deab..996103d44b 100644
--- a/.github/configs/feature.yaml
+++ b/.github/configs/feature.yaml
@@ -1,21 +1,20 @@
-variables:
-  legacy_fork: Shanghai
-  mainnet_fork: Cancun
-  development_fork: Prague
+past_fork: &past_fork Shanghai
+mainnet_fork: &mainnet_fork Cancun
+development_fork: &development_fork Prague
 
 legacy:
   evm-type: stable
-  fill-params: --until=${legacy_fork}
+  fill-params: --until=*{past_fork}
   solc: 0.8.21
 
 stable:
   evm-type: stable
-  fill-params: --fork=${mainnet_fork}
+  fill-params: --fork=*{mainnet_fork}
   solc: 0.8.21
 
 develop:
   evm-type: develop
-  fill-params: --from=${mainnet_fork} --until=${development_fork}
+  fill-params: --from=*{mainnet_fork} --until=*{development_fork}
   solc: 0.8.21
 
 eip7692: