diff --git a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-cardano.sh b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-cardano.sh
index 922bafee635..0aea41ca748 100644
--- a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-cardano.sh
+++ b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-cardano.sh
@@ -85,11 +85,6 @@ $CARDANO_CLI byron genesis genesis \
 cp $SCRIPT_DIRECTORY/configuration/babbage/alonzo-babbage-test-genesis.json "${ARTIFACTS_DIR_TEMP}/genesis.alonzo.spec.json"
 cp $SCRIPT_DIRECTORY/configuration/babbage/conway-babbage-test-genesis.json "${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json"
 
-if [ "${CARDANO_NODE_VERSION_RELEASE}" = "8.1.2" ]; then
-  # Fix 8.1.2, to avoid the following error: 'Command failed: genesis create-staked  Error: Error while decoding Shelley genesis at: example/genesis.conway.spec.json Error: Error in $: key "genDelegs" not found'
-  mv ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp && cat ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp | jq '. += {"genDelegs":{}}' > ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json && rm ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp
-fi
-
 if [ $(version_lt "${CARDANO_NODE_VERSION_RELEASE}" "8.8.0") = "false" ]; then
   # Fix >=8.8.0, to avoid the following errors: 'Command failed: genesis create-staked  Error: Error: Error while decoding Shelley genesis at: ./temp/genesis.conway.spec.json Error: Error in $.poolVotingThresholds: key "motionNoConfidence" not found'
   mv ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp && cat ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp | jq '. += {"poolVotingThresholds": {"motionNoConfidence": 0.51, "committeeNormal": 0.51, "committeeNoConfidence": 0.51, "hardForkInitiation": 0.51, "ppSecurityGroup": 0.51}, "dRepVotingThresholds": {"motionNoConfidence": 0.51, "committeeNormal": 0.51, "committeeNoConfidence": 0.51, "updateToConstitution": 0.51, "hardForkInitiation": 0.51, "ppNetworkGroup": 0.51, "ppEconomicGroup": 0.51, "ppTechnicalGroup": 0.51, "ppGovGroup": 0.51, "treasuryWithdrawal": 0.51}}' > ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json && rm ${ARTIFACTS_DIR_TEMP}/genesis.conway.spec.json.tmp
diff --git a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-delegation.sh b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-delegation.sh
index ac0f25712e5..e2c8946462f 100644
--- a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-delegation.sh
+++ b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-delegation.sh
@@ -10,11 +10,6 @@ CURRENT_CARDANO_ERA=\$(CARDANO_NODE_SOCKET_PATH=node-pool${N}/ipc/node.sock $CAR
     | jq  -r '.era |= ascii_downcase | .era')
 echo ">>>> Current Cardano Era: \${CURRENT_CARDANO_ERA}"
 
-# Fix: era related command is not (well) supported in Cardano node version '8.1.2'
-if [ "${CARDANO_NODE_VERSION}" = "8.1.2" ]; then
-    CURRENT_CARDANO_ERA=""
-fi
-
 # Get the current epoch
 CURRENT_EPOCH=\$(CARDANO_NODE_SOCKET_PATH=node-pool${N}/ipc/node.sock $CARDANO_CLI query tip \\
                     --cardano-mode \\
@@ -65,19 +60,11 @@ EOF
 # User N will delegate to pool N
 for N in ${POOL_NODES_N}; do
   cat >> delegate.sh <<EOF
-    if [ \$(version_lte "${CARDANO_NODE_VERSION_RELEASE}" "8.1.2") == "false" ]; then
-      # Stake address delegation certs
-      $CARDANO_CLI \${CURRENT_CARDANO_ERA} stake-address stake-delegation-certificate \
-          --stake-verification-key-file addresses/user${N}-stake.vkey \
-          --cold-verification-key-file  node-pool${N}/shelley/cold.vkey \
-          --out-file addresses/user${N}-stake.deleg.cert
-    else
-      # Legacy stake address delegation certs
-      $CARDANO_CLI \${CURRENT_CARDANO_ERA} stake-address delegation-certificate \
-          --stake-verification-key-file addresses/user${N}-stake.vkey \
-          --cold-verification-key-file  node-pool${N}/shelley/cold.vkey \
-          --out-file addresses/user${N}-stake.deleg.cert
-    fi
+    # Stake address delegation certs
+    $CARDANO_CLI \${CURRENT_CARDANO_ERA} stake-address stake-delegation-certificate \
+        --stake-verification-key-file addresses/user${N}-stake.vkey \
+        --cold-verification-key-file  node-pool${N}/shelley/cold.vkey \
+        --out-file addresses/user${N}-stake.deleg.cert
 
 EOF
 done
diff --git a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-era.sh b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-era.sh
index 892461f9d9a..4425249c70d 100644
--- a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-era.sh
+++ b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-era.sh
@@ -62,11 +62,6 @@ function send_funds_to_era_address {
         | jq  -r '.era |= ascii_downcase | .era')
     echo ">>>> Current Cardano Era: \${CURRENT_CARDANO_ERA}"
 
-    # Fix: era related command is not (well) supported in Cardano node version '8.1.2'
-    if [ "${CARDANO_NODE_VERSION}" = "8.1.2" ]; then
-        CURRENT_CARDANO_ERA=""
-    fi
-
     # Get current Cardano block
     CURRENT_CARDANO_BLOCK=\$(CARDANO_NODE_SOCKET_PATH=node-pool${N}/ipc/node.sock $CARDANO_CLI query tip \\
         --testnet-magic ${NETWORK_MAGIC} \\
diff --git a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-payment.sh b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-payment.sh
index 8a2f08b510f..ad0ef3acd42 100644
--- a/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-payment.sh
+++ b/mithril-test-lab/mithril-devnet/mkfiles/mkfiles-mithril-payment.sh
@@ -77,11 +77,6 @@ cat >> payment-mithril.sh <<EOF
         | jq  -r '.era |= ascii_downcase | .era')
     echo ">>>>>> Current Cardano Era: \${CURRENT_CARDANO_ERA}"
 
-    # Fix: era related command is not (well) supported in Cardano node version '8.1.2'
-    if [ "${CARDANO_NODE_VERSION}" = "8.1.2" ]; then
-        CURRENT_CARDANO_ERA=""
-    fi
-
     # Set the amount to be transferred
     AMOUNT_TRANSFERRED=\$(( 2000000 + 10 * ${i} + j))
     echo ">>>>>> Send funds: \${AMOUNT_TRANSFERRED} Lovelace from 'utxo${i}.addr' to '${ADDR_RX}.addr'"