diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ada108b604..aa88288119 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -29,4 +29,4 @@ jobs:
             .sum
       - run: |
           make build
-        if: "env.GIT_DIFF != ''"
+        if: env.GIT_DIFF
diff --git a/.github/workflows/deploy-contract.yml b/.github/workflows/deploy-contract.yml
index 41edf6330d..cfbb67e7a5 100644
--- a/.github/workflows/deploy-contract.yml
+++ b/.github/workflows/deploy-contract.yml
@@ -35,4 +35,4 @@ jobs:
         run: |
           sudo make contract-tools
           sudo make test-contract
-        if: "env.GIT_DIFF != ''"
+        if: env.GIT_DIFF
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bebcbe3aea..3f677b263e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -73,7 +73,7 @@ jobs:
       - name: test-importer
         run: |
           make test-import
-        if: "env.GIT_DIFF != ''"
+        if: env.GIT_DIFF
 
   test-solidity:
     runs-on: ubuntu-latest
@@ -100,7 +100,7 @@ jobs:
       - name: test-solidity
         run: |
           ./scripts/run-solidity-tests.sh --batch=${{ matrix.batch }}
-        if: "env.GIT_DIFF != ''"
+        if: env.GIT_DIFF
 
   liveness-test:
     runs-on: ubuntu-latest
@@ -150,3 +150,23 @@ jobs:
         run: |
           make test-rpc
         if: env.GIT_DIFF
+
+  test-e2e:
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - uses: actions/setup-go@v2.1.4
+        with:
+          go-version: 1.17
+      - uses: actions/checkout@v2.4.0
+      - uses: technote-space/get-diff-action@v6.0.1
+        with:
+          PATTERNS: |
+            **/**.sol
+            **/**.go
+            go.mod
+            go.sum
+      - name: Test e2e
+        run: |
+          make test-integration
+        if: env.GIT_DIFF
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ba9c6676c..a6e096ae4b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -79,6 +79,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (evm) [tharsis#871](https://github.com/tharsis/ethermint/pull/871) Set correct nonce in `EthCall` and `EstimateGas` grpc query.
 * (rpc) [tharsis#878](https://github.com/tharsis/ethermint/pull/878) Workaround to make GetBlock RPC api report correct block gas used.
 * (rpc) [tharsis#900](https://github.com/tharsis/ethermint/pull/900) newPendingTransactions filter return ethereum tx hash.
+* (rpc) [tharsis#933](https://github.com/tharsis/ethermint/pull/933) Fix newPendingTransactions subscription deadlock when a Websocket client exits without unsubscribing and the node errors.
 
 ## [v0.9.0] - 2021-12-01
 
diff --git a/Makefile b/Makefile
index 6580ad6ab4..de98980e4b 100755
--- a/Makefile
+++ b/Makefile
@@ -324,6 +324,9 @@ test-import:
 test-rpc:
 	./scripts/integration-test-all.sh -t "rpc" -q 1 -z 1 -s 2 -m "rpc" -r "true"
 
+test-integration:
+	./scripts/integration-test-all.sh -t "integration" -q 1 -z 1 -s 2 -m "integration" -r "true"
+
 test-rpc-pending:
 	./scripts/integration-test-all.sh -t "pending" -q 1 -z 1 -s 2 -m "pending" -r "true"
 
diff --git a/app/ante/eth.go b/app/ante/eth.go
index 4ed65a644b..4255fb9820 100644
--- a/app/ante/eth.go
+++ b/app/ante/eth.go
@@ -154,7 +154,6 @@ func NewEthGasConsumeDecorator(
 // of data supplied with the transaction.
 //
 // This AnteHandler decorator will fail if:
-// - the transaction contains more than one message
 // - the message is not a MsgEthereumTx
 // - sender account cannot be found
 // - transaction's gas limit is lower than the intrinsic gas
diff --git a/go.mod b/go.mod
index 3718227f43..ca31a74b3f 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/btcsuite/btcd v0.22.0-beta
 	github.com/btcsuite/btcutil v1.0.3-0.20201208143702-a53e38424cce
-	github.com/cosmos/cosmos-sdk v0.45.0
+	github.com/cosmos/cosmos-sdk v0.45.1
 	github.com/cosmos/go-bip39 v1.0.0
 	github.com/cosmos/ibc-go/v2 v2.0.2
 	github.com/davecgh/go-spew v1.1.1
@@ -37,7 +37,7 @@ require (
 	go.etcd.io/bbolt v1.3.6 // indirect
 	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3 // indirect
 	google.golang.org/genproto v0.0.0-20211223182754-3ac035c7e7cb
-	google.golang.org/grpc v1.43.0
+	google.golang.org/grpc v1.44.0
 	google.golang.org/protobuf v1.27.1
 	gopkg.in/yaml.v2 v2.4.0
 )
diff --git a/go.sum b/go.sum
index 87ebf72b59..efd6fcd419 100644
--- a/go.sum
+++ b/go.sum
@@ -228,8 +228,8 @@ github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfc
 github.com/cosmos/btcutil v1.0.4 h1:n7C2ngKXo7UC9gNyMNLbzqz7Asuf+7Qv4gnX/rOdQ44=
 github.com/cosmos/btcutil v1.0.4/go.mod h1:Ffqc8Hn6TJUdDgHBwIZLtrLQC1KdJ9jGJl/TvgUaxbU=
 github.com/cosmos/cosmos-sdk v0.44.5/go.mod h1:maUA6m2TBxOJZkbwl0eRtEBgTX37kcaiOWU5t1HEGaY=
-github.com/cosmos/cosmos-sdk v0.45.0 h1:DHD+CIRZ+cYgiLXuTEUL/aprnfPsWSwaww/fIZEsZlk=
-github.com/cosmos/cosmos-sdk v0.45.0/go.mod h1:XXS/asyCqWNWkx2rW6pSuen+EVcpAFxq6khrhnZgHaQ=
+github.com/cosmos/cosmos-sdk v0.45.1 h1:PY79YxPea5qlRLExRnzg8/rT1Scc8GGgRs22p7DX99Q=
+github.com/cosmos/cosmos-sdk v0.45.1/go.mod h1:XXS/asyCqWNWkx2rW6pSuen+EVcpAFxq6khrhnZgHaQ=
 github.com/cosmos/go-bip39 v0.0.0-20180819234021-555e2067c45d/go.mod h1:tSxLoYXyBmiFeKpvmq4dzayMdCjCnu8uqmCysIGBT2Y=
 github.com/cosmos/go-bip39 v1.0.0 h1:pcomnQdrdH22njcAatO0yWojsUnCO3y2tNoV1cb6hHY=
 github.com/cosmos/go-bip39 v1.0.0/go.mod h1:RNJv0H/pOIVgxw6KS7QeX2a0Uo0aKUlfhZ4xuwvCdJw=
diff --git a/rpc/websockets.go b/rpc/websockets.go
index 86629e3488..76b5c489c7 100644
--- a/rpc/websockets.go
+++ b/rpc/websockets.go
@@ -712,8 +712,16 @@ func (api *pubSubAPI) subscribePendingTransactions(wsConn *wsConn) (rpc.ID, erro
 							api.logger.Debug("error writing header, will drop peer", "error", err.Error())
 
 							try(func() {
+								// Release the initial read lock in .RUnlock() before
+								// invoking .Lock() to avoid the deadlock in
+								// https://github.com/tharsis/ethermint/issues/821#issuecomment-1033959984
+								// and as documented at https://pkg.go.dev/sync#RWMutex
+								api.filtersMu.RUnlock()
 								api.filtersMu.Lock()
-								defer api.filtersMu.Unlock()
+								defer func() {
+									api.filtersMu.Unlock()
+									api.filtersMu.RLock()
+								}()
 
 								if err != websocket.ErrCloseSent {
 									_ = wsSub.wsConn.Close()
diff --git a/scripts/integration-test-all.sh b/scripts/integration-test-all.sh
index 421684b1d3..1522f219af 100755
--- a/scripts/integration-test-all.sh
+++ b/scripts/integration-test-all.sh
@@ -139,8 +139,18 @@ echo "done sleeping"
 
 set +e
 
-if [[ -z $TEST || $TEST == "rpc" ||  $TEST == "pending" ]]; then
+if [[ -z $TEST || $TEST == "integration" ]] ; then
+    time_out=300s
 
+    for i in $(seq 1 "$TEST_QTD"); do
+        HOST_RPC=http://$IP_ADDR:$RPC_PORT"$i"
+        echo "going to test ethermint node $HOST_RPC ..."
+        MODE=$MODE HOST=$HOST_RPC go test ./tests/e2e/... -timeout=$time_out -v -short
+        TEST_FAIL=$?
+    done
+fi
+
+if [[ -z $TEST || $TEST == "rpc" ||  $TEST == "pending" ]]; then
     time_out=300s
     if [[ $TEST == "pending" ]]; then
       time_out=60m0s
@@ -149,10 +159,9 @@ if [[ -z $TEST || $TEST == "rpc" ||  $TEST == "pending" ]]; then
     for i in $(seq 1 "$TEST_QTD"); do
         HOST_RPC=http://$IP_ADDR:$RPC_PORT"$i"
         echo "going to test ethermint node $HOST_RPC ..."
-        MODE=$MODE HOST=$HOST_RPC go test ./tests/e2e/... -timeout=$time_out -v -short
         MODE=$MODE HOST=$HOST_RPC go test ./tests/rpc/... -timeout=$time_out -v -short
 
-        RPC_FAIL=$?
+        TEST_FAIL=$?
     done
 
 fi
@@ -175,8 +184,8 @@ for i in "${arr[@]}"; do
     stop_func "$i"
 done
 
-if [[ (-z $TEST || $TEST == "rpc") && $RPC_FAIL -ne 0 ]]; then
-    exit $RPC_FAIL
+if [[ (-z $TEST || $TEST == "rpc" || $TEST == "integration" ) && $TEST_FAIL -ne 0 ]]; then
+    exit $TEST_FAIL
 else
     exit 0
 fi
diff --git a/scripts/start.sh b/scripts/start.sh
index 285ebda4af..c05bff709e 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -127,7 +127,7 @@ if [[ -z $TEST || $TEST == "rpc" ]]; then
         MODE=$MODE HOST=$HOST_RPC go test ./tests/e2e/... -timeout=300s -v -short
         MODE=$MODE HOST=$HOST_RPC go test ./tests/rpc/... -timeout=300s -v -short
 
-        RPC_FAIL=$?
+        TEST_FAIL=$?
     done
     
 fi
@@ -150,8 +150,8 @@ for i in "${arr[@]}"; do
     stop_func "$i"
 done
 
-if [[ (-z $TEST || $TEST == "rpc") && $RPC_FAIL -ne 0 ]]; then
-    exit $RPC_FAIL
+if [[ (-z $TEST || $TEST == "rpc") && $TEST_FAIL -ne 0 ]]; then
+    exit $TEST_FAIL
 else
     exit 0
 fi
diff --git a/tests/e2e/integration_test.go b/tests/e2e/integration_test.go
index 773f95acc0..3c09b86002 100644
--- a/tests/e2e/integration_test.go
+++ b/tests/e2e/integration_test.go
@@ -4,11 +4,12 @@ import (
 	"bytes"
 	"context"
 	"fmt"
-	sdk "github.com/cosmos/cosmos-sdk/types"
-	evmtypes "github.com/tharsis/ethermint/x/evm/types"
 	"math/big"
 	"testing"
 
+	sdk "github.com/cosmos/cosmos-sdk/types"
+	evmtypes "github.com/tharsis/ethermint/x/evm/types"
+
 	// . "github.com/onsi/ginkgo"
 	// . "github.com/onsi/gomega"
 
@@ -392,6 +393,7 @@ func (s *IntegrationTestSuite) TestGetLogs() {
 		common.HexToHash("0x000000000000000000000000" + fmt.Sprintf("%x", common.BytesToAddress(s.network.Validators[0].Address))),
 		common.HexToHash("0x000000000000000000000000378c50d9264c63f3f92b806d4ee56e9d86ffb3ec"),
 	}
+
 	s.Require().Equal(expectedTopics, logs[0].Topics)
 }
 
diff --git a/tests/solidity/yarn.lock b/tests/solidity/yarn.lock
index 52b52aac59..cd486800da 100644
--- a/tests/solidity/yarn.lock
+++ b/tests/solidity/yarn.lock
@@ -13788,9 +13788,9 @@ simple-concat@^1.0.0:
   integrity sha512-cSFtAPtRhljv69IK0hTVZQ+OfE9nePi/rtJmw5UjHeVyVroEqJXP1sFztKUy1qU+xvz3u/sfYJLa947b7nAN2Q==
 
 simple-get@^2.7.0:
-  version "2.8.1"
-  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-2.8.1.tgz#0e22e91d4575d87620620bc91308d57a77f44b5d"
-  integrity sha512-lSSHRSw3mQNUGPAYRqo7xy9dhKmxFXIjLjp4KHpf99GEH2VH7C3AM+Qfx6du6jhfUi6Vm7XnbEVEf7Wb6N8jRw==
+  version "2.8.2"
+  resolved "https://registry.yarnpkg.com/simple-get/-/simple-get-2.8.2.tgz#5708fb0919d440657326cd5fe7d2599d07705019"
+  integrity sha512-Ijd/rV5o+mSBBs4F/x9oDPtTx9Zb6X9brmnXvMW4J7IR15ngi9q5xxqWBKU744jTZiaXtxaPL7uHG6vtN8kUkw==
   dependencies:
     decompress-response "^3.3.0"
     once "^1.3.1"
diff --git a/x/evm/spec/08_params.md b/x/evm/spec/08_params.md
index 22487d0f5c..213e36cca0 100644
--- a/x/evm/spec/08_params.md
+++ b/x/evm/spec/08_params.md
@@ -76,6 +76,5 @@ By default, all block configuration fields but `ConstantinopleBlock`, are enable
 | IstanbulBlock       | 0                                                                    |
 | MuirGlacierBlock    | 0                                                                    |
 | BerlinBlock         | 0                                                                    |
-| CatalystBlock       | `nil`                                                                |
 | LondonBlock         | 0                                                                    |