diff --git a/google-cloud-pub-sub-grpc/src/main/mima-filters/5.0.0-M1.backwards.excludes/grpc2.backwards.excludes b/google-cloud-pub-sub-grpc/src/main/mima-filters/5.0.0-M1.backwards.excludes/grpc2.backwards.excludes
new file mode 100644
index 0000000000..763956b4ec
--- /dev/null
+++ b/google-cloud-pub-sub-grpc/src/main/mima-filters/5.0.0-M1.backwards.excludes/grpc2.backwards.excludes
@@ -0,0 +1,2 @@
+# ScalaPB-generated classes
+ProblemFilters.exclude[Problem]("io.grpc.*")
diff --git a/project/build.properties b/project/build.properties
index c8fcab543a..563a014da4 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1 +1 @@
-sbt.version=1.6.2
+sbt.version=1.7.2
diff --git a/project/plugins.sbt b/project/plugins.sbt
index fabffb1086..a7d38cb0fd 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -4,7 +4,7 @@ addSbtPlugin("com.geirsson" % "sbt-ci-release" % "1.5.7")
 // discipline
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "5.7.0")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.6")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.0")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "1.1.1")
 addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.7.0")
 // docs
 addSbtPlugin("com.lightbend.akka" % "sbt-paradox-akka" % "0.45")
@@ -14,6 +14,6 @@ addSbtPlugin("com.github.sbt" % "sbt-unidoc" % "0.5.0")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.2")
 addSbtPlugin("com.typesafe.sbt" % "sbt-site" % "1.4.1")
 // Akka gRPC -- sync with version in Dependencies.scala:19
-addSbtPlugin("com.lightbend.akka.grpc" % "sbt-akka-grpc" % "2.1.5")
+addSbtPlugin("com.lightbend.akka.grpc" % "sbt-akka-grpc" % "2.2.0-M1")
 // templating
 addSbtPlugin("io.spray" % "sbt-boilerplate" % "0.6.1")