diff --git a/.buildkite/scripts/daily_txsource.sh b/.buildkite/scripts/daily_txsource.sh
index 79989892230..41e4911fbf5 100755
--- a/.buildkite/scripts/daily_txsource.sh
+++ b/.buildkite/scripts/daily_txsource.sh
@@ -11,10 +11,11 @@ if [[ $BUILDKITE_RETRY_COUNT == 0 ]]; then
         --metrics.labels instance=$BUILDKITE_PIPELINE_NAME-$BUILDKITE_BUILD_NUMBER \
         --scenario e2e/runtime/txsource-multi
 else
-    curl -H "Content-Type: application/json" \
-        -X POST \
-        --data "{\"text\": \"Daily transaction source tests failure\"}" \
-        "$SLACK_WEBHOOK_URL"
+    # Disable for testing.
+    # curl -H "Content-Type: application/json" \
+    #     -X POST \
+    #     --data "{\"text\": \"Daily transaction source tests failure\"}" \
+    #     "$SLACK_WEBHOOK_URL"
 
     # Exit with non-zero exit code, so that the buildkite build will be
     # marked as failed.
diff --git a/go/go.mod b/go/go.mod
index 9bb28031faf..325a5f65f16 100644
--- a/go/go.mod
+++ b/go/go.mod
@@ -19,7 +19,7 @@ require (
 	github.com/cznic/b v0.0.0-20181122101859-a26611c4d92d // indirect
 	github.com/cznic/mathutil v0.0.0-20181122101859-297441e03548 // indirect
 	github.com/cznic/strutil v0.0.0-20181122101858-275e90344537 // indirect
-	github.com/dgraph-io/badger/v2 v2.0.3
+	github.com/dgraph-io/badger/v2 v2.0.1-rc1.0.20200718033852-37ee16d8ad1c
 	github.com/eapache/channels v1.1.0
 	github.com/fxamacker/cbor/v2 v2.2.1-0.20200526031912-58b82b5bfc05
 	github.com/go-kit/kit v0.10.0
diff --git a/go/go.sum b/go/go.sum
index 3fed4267930..7ce350f1cf8 100644
--- a/go/go.sum
+++ b/go/go.sum
@@ -164,12 +164,12 @@ github.com/dgraph-io/badger v1.6.0-rc1/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhY
 github.com/dgraph-io/badger v1.6.0/go.mod h1:zwt7syl517jmP8s94KqSxTlM6IMsdhYy6psNgSztDR4=
 github.com/dgraph-io/badger v1.6.1 h1:w9pSFNSdq/JPM1N12Fz/F/bzo993Is1W+Q7HjPzi7yg=
 github.com/dgraph-io/badger v1.6.1/go.mod h1:FRmFw3uxvcpa8zG3Rxs0th+hCLIuaQg8HlNV5bjgnuU=
-github.com/dgraph-io/badger/v2 v2.0.3 h1:inzdf6VF/NZ+tJ8RwwYMjJMvsOALTHYdozn0qSl6XJI=
-github.com/dgraph-io/badger/v2 v2.0.3/go.mod h1:3KY8+bsP8wI0OEnQJAKpd4wIJW/Mm32yw2j/9FUVnIM=
-github.com/dgraph-io/ristretto v0.0.2-0.20200115201040-8f368f2f2ab3 h1:MQLRM35Pp0yAyBYksjbj1nZI/w6eyRY/mWoM1sFf4kU=
-github.com/dgraph-io/ristretto v0.0.2-0.20200115201040-8f368f2f2ab3/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
+github.com/dgraph-io/badger/v2 v2.0.1-rc1.0.20200718033852-37ee16d8ad1c h1:LoEZfU53r3H1et4WY9M0h1c3fuCljBnn3pk/7TB5eWY=
+github.com/dgraph-io/badger/v2 v2.0.1-rc1.0.20200718033852-37ee16d8ad1c/go.mod h1:26P/7fbL4kUZVEVKLAKXkBXKOydDmM2p1e+NhhnBCAE=
 github.com/dgraph-io/ristretto v0.0.2 h1:a5WaUrDa0qm0YrAAS1tUykT5El3kt62KNZZeMxQn3po=
 github.com/dgraph-io/ristretto v0.0.2/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
+github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de h1:t0UHb5vdojIDUqktM6+xJAfScFBsVpXZmqC9dsgJmeA=
+github.com/dgraph-io/ristretto v0.0.3-0.20200630154024-f66de99634de/go.mod h1:KPxhHT9ZxKefz+PCeOGsrHpl1qZ7i70dGTu2u+Ahh6E=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
 github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f h1:dDxpBYafY/GYpcl+LS4Bn3ziLPuEdGRkRjYAbSlWxSA=
 github.com/dgryski/go-farm v0.0.0-20190104051053-3adb47b1fb0f/go.mod h1:SqUrOPUnsFjfmXRMNPybcSiG0BgUW2AuFH8PAnS2iTw=