diff --git a/tests/conformance_tests/src/message.rs b/tests/conformance_tests/src/message.rs
index b141f216c6c1..c45e6bff0348 100644
--- a/tests/conformance_tests/src/message.rs
+++ b/tests/conformance_tests/src/message.rs
@@ -4,7 +4,6 @@
 use super::*;
 use db::MemoryDB;
 use interpreter::{CircSupplyCalc, LookbackStateGetter};
-use networks::get_network_version_default;
 use state_tree::StateTree;
 use vm::TokenAmount;
 
@@ -23,6 +22,7 @@ pub struct ExecuteMessageParams<'a> {
     pub circ_supply: TokenAmount,
     pub basefee: TokenAmount,
     pub randomness: ReplayingRand<'a>,
+    pub nv: fil_types::NetworkVersion,
 }
 
 struct MockCircSupply(TokenAmount);
@@ -51,13 +51,14 @@ pub fn execute_message(
     let circ_supply = MockCircSupply(params.circ_supply);
     let lb = MockStateLB(bs);
 
+    let nv = params.nv;
     let mut vm = VM::<_, _, _, _, _>::new(
         params.pre_root,
         bs,
         params.epoch,
         &params.randomness,
         params.basefee,
-        get_network_version_default,
+        |_| nv,
         &circ_supply,
         &lb,
     )?;
diff --git a/tests/conformance_tests/test-vectors b/tests/conformance_tests/test-vectors
index 7aebc6f892fc..d96ce11315df 160000
--- a/tests/conformance_tests/test-vectors
+++ b/tests/conformance_tests/test-vectors
@@ -1 +1 @@
-Subproject commit 7aebc6f892fc03819dc3f980df184604c9e9bf63
+Subproject commit d96ce11315dfd219a7279dfa129214212e1b0510
diff --git a/tests/conformance_tests/tests/conformance_runner.rs b/tests/conformance_tests/tests/conformance_runner.rs
index 7cdd412a100d..df6de30c4d7a 100644
--- a/tests/conformance_tests/tests/conformance_runner.rs
+++ b/tests/conformance_tests/tests/conformance_runner.rs
@@ -11,6 +11,7 @@ use cid::Cid;
 use clock::ChainEpoch;
 use conformance_tests::*;
 use encoding::Cbor;
+use fil_types::NetworkVersion;
 use fil_types::TOTAL_FILECOIN;
 use flate2::read::GzDecoder;
 use forest_message::{MessageReceipt, UnsignedMessage};
@@ -21,6 +22,7 @@ use paramfetch::{get_params_default, SectorSizeOpt};
 use regex::Regex;
 use state_manager::StateManager;
 use statediff::print_state_diff;
+use std::convert::TryInto;
 use std::error::Error as StdError;
 use std::fmt;
 use std::fs::File;
@@ -189,6 +191,7 @@ async fn execute_message_vector(
                     .map(|i| i.to_bigint().unwrap())
                     .unwrap_or(DEFAULT_BASE_FEE.clone()),
                 randomness: ReplayingRand::new(randomness),
+                nv: variant.nv.try_into().unwrap_or(NetworkVersion::V0),
             },
         )?;
         root = post_root;
diff --git a/types/src/version.rs b/types/src/version.rs
index f0a7074f8e73..8dcf13623a0f 100644
--- a/types/src/version.rs
+++ b/types/src/version.rs
@@ -2,10 +2,13 @@
 // SPDX-License-Identifier: Apache-2.0, MIT
 
 use encoding::repr::Serialize_repr;
+use std::convert::TryFrom;
 use std::fmt::{self, Display, Formatter};
+use num_derive::FromPrimitive;
+use num_traits::FromPrimitive;
 
 /// Specifies the network version
-#[derive(Debug, PartialEq, Clone, Copy, PartialOrd, Serialize_repr)]
+#[derive(Debug, PartialEq, Clone, Copy, PartialOrd, Serialize_repr, FromPrimitive)]
 #[repr(u32)]
 pub enum NetworkVersion {
     /// genesis (specs-actors v0.9.3)
@@ -40,6 +43,17 @@ pub enum NetworkVersion {
     V14,
 }
 
+impl TryFrom<u32> for NetworkVersion {
+    type Error = ();
+
+    fn try_from(v: u32) -> Result<Self, Self::Error> {
+        match FromPrimitive::from_u32(v) {
+            Some(nv) => Ok(nv),
+            _ => Err(()),
+        }
+    }
+}
+
 impl Display for NetworkVersion {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         match self {