diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 59f279a90a..ebb1f7d1dd 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -42,6 +42,37 @@ sbt:sigma-state> testOnly <full test class name>
 ```
 
 ## Releasing
+
+### Setup GPG key
+
+Follow [instructions](https://central.sonatype.org/publish/requirements/gpg/) to set up GPG key.
+You will need:
+- create a GPG key pair;
+- publish your public key to a public key server;
+
+### Check Sonatype credentials
+Try to login to Nexus Repository Manager with your credentials [here](https://oss.sonatype.org/#welcome)
+
+### Using Sonatype with SBT
+
+Follow [instructions](https://www.scala-sbt.org/release/docs/Using-Sonatype.html) to set up Sonatype with SBT.
+You will also need:
+- [how to publish a release](https://docs.scala-lang.org/overviews/contributors/index.html#publish-a-release)
+- [sbt-sonatype plugin](https://github.com/xerial/sbt-sonatype)
+- [sbt-dynver plugin](https://github.com/sbt/sbt-dynver)
+
+### Publishing release
+This can be done manually or automatically by Github Actions.
+
+#### Manual publishing
+To publish release to Sonatype, use the following:
+```
+$sbt
+sbt:sigma-state> +publishSigned
+sbt:sigma-state> sonatypeBundleRelease
+```
+
+#### Automatic publishing
 To publish release version to Sonatype, do the following:
-- make a tag with version number `vX.Y.Z` (used by `sbt-dynver` to set `version` in `build.sbt`);
+- make a tag with version number `vX.Y.Z` (used by `sbt-dynver` to set `version` key);
 - use the new tag to make a Github release, which triggers [`release.yml`](.github/workflows/release.yml) workflow and publishes release version to Sonatype;
diff --git a/build.sbt b/build.sbt
index f8937e0729..2db559c20c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -55,7 +55,7 @@ lazy val commonSettings = Seq(
   ),
 )
 
-// prefix version with "-SNAPSHOT" for builds without a git tag
+// suffix version with "-SNAPSHOT" for builds without a git tag
 dynverSonatypeSnapshots in ThisBuild := true
 // use "-" instead of default "+"
 dynverSeparator in ThisBuild := "-"
diff --git a/project/plugins.sbt b/project/plugins.sbt
index b9cfa44119..f9112ba7f2 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -5,6 +5,6 @@ addSbtPlugin("com.eed3si9n" % "sbt-buildinfo" % "0.9.0")
 addSbtPlugin("net.virtual-void" % "sbt-dependency-graph" % "0.9.2")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.6.1")
 addSbtPlugin("org.scoverage" % "sbt-coveralls" % "1.2.7")
-addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.5")
-addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.0.0")
+addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.17")
+addSbtPlugin("com.github.sbt" % "sbt-pgp" % "2.2.1")
 addSbtPlugin("com.dwijnand" % "sbt-dynver" % "4.1.1")
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