diff --git a/dagger.nimble b/dagger.nimble
index 30274dc7..7bbaf533 100644
--- a/dagger.nimble
+++ b/dagger.nimble
@@ -13,7 +13,7 @@ requires "nim >= 1.2.6",
          "secp256k1",
          "stew#head",
          "protobufserialization >= 0.2.0 & < 0.3.0",
-         "https://github.com/status-im/nim-nitro >= 0.2.0 & < 0.3.0",
-         "questionable >= 0.5.0 & < 0.6.0",
+         "https://github.com/status-im/nim-nitro >= 0.4.0 & < 0.5.0",
+         "questionable >= 0.7.0 & < 0.8.0",
          "upraises >= 0.1.0 & < 0.2.0",
          "asynctest >= 0.2.1 & < 0.3.0"
diff --git a/dagger/bitswap/engine.nim b/dagger/bitswap/engine.nim
index bfaf5846..acdd6bdb 100644
--- a/dagger/bitswap/engine.nim
+++ b/dagger/bitswap/engine.nim
@@ -284,8 +284,8 @@ proc setupPeer*(b: BitswapEngine, peer: PeerID) =
   if b.wantList.len > 0:
     b.request.sendWantList(peer, b.wantList, full = true)
 
-  if b.pricing.isSome:
-    b.request.sendPricing(peer, b.pricing.get)
+  if pricing =? b.pricing:
+    b.request.sendPricing(peer, pricing)
 
 proc dropPeer*(b: BitswapEngine, peer: PeerID) =
   ## Cleanup disconnected peer
diff --git a/dagger/bitswap/engine/payments.nim b/dagger/bitswap/engine/payments.nim
index 3fff6aa2..ecb61835 100644
--- a/dagger/bitswap/engine/payments.nim
+++ b/dagger/bitswap/engine/payments.nim
@@ -19,13 +19,13 @@ func openLedgerChannel*(wallet: var Wallet,
 
 func getOrOpenChannel(wallet: var Wallet, peer: BitswapPeerCtx): ?!ChannelId =
   if channel =? peer.paymentChannel:
-    channel.success
+    success channel
   elif pricing =? peer.pricing:
     let channel = ?wallet.openLedgerChannel(pricing.address, pricing.asset)
     peer.paymentChannel = channel.some
-    channel.success
+    success channel
   else:
-    ChannelId.failure "no pricing set for peer"
+    failure "no pricing set for peer"
 
 func pay*(wallet: var Wallet,
           peer: BitswapPeerCtx,
@@ -37,4 +37,4 @@ func pay*(wallet: var Wallet,
     let channel = ?wallet.getOrOpenChannel(peer)
     wallet.pay(channel, asset, receiver, amount)
   else:
-    SignedState.failure "no pricing set for peer"
+    failure "no pricing set for peer"
diff --git a/tests/dagger/bitswap/engine/testpayments.nim b/tests/dagger/bitswap/engine/testpayments.nim
index c66a7e74..8dec9c27 100644
--- a/tests/dagger/bitswap/engine/testpayments.nim
+++ b/tests/dagger/bitswap/engine/testpayments.nim
@@ -15,15 +15,15 @@ suite "engine payments":
     peer.pricing = Pricing.example.some
 
   test "pays for received bytes":
-    let payment = wallet.pay(peer, amountOfBytes).get
-    let pricing = peer.pricing.get
+    let payment = !wallet.pay(peer, amountOfBytes)
+    let pricing = !peer.pricing
     let balances = payment.state.outcome.balances(pricing.asset)
     let destination = pricing.address.toDestination
-    check balances[destination].get == amountOfBytes.u256 * pricing.price
+    check !balances[destination] == amountOfBytes.u256 * pricing.price
 
   test "no payment when no price is set":
     peer.pricing = Pricing.none
-    check wallet.pay(peer, amountOfBytes).isErr
+    check wallet.pay(peer, amountOfBytes).isFailure
 
   test "uses same channel for consecutive payments":
     let payment1, payment2 = wallet.pay(peer, amountOfBytes)
diff --git a/tests/dagger/bitswap/testengine.nim b/tests/dagger/bitswap/testengine.nim
index 45d994d5..529df81c 100644
--- a/tests/dagger/bitswap/testengine.nim
+++ b/tests/dagger/bitswap/testengine.nim
@@ -155,7 +155,7 @@ suite "Bitswap engine handlers":
 
     engine.request.sendPayment = proc(receiver: PeerID, payment: SignedState) =
       let amount = blocks.mapIt(it.data.len).foldl(a+b).u256 * pricing.price
-      let balances = payment.state.outcome.balances(pricing.asset).get
+      let balances = !payment.state.outcome.balances(pricing.asset)
       check receiver == peerId
       check balances[pricing.address.toDestination] == amount
       done.complete()