diff --git a/README.md b/README.md
index 2d6befe..3239116 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 [![image](https://readthedocs.org/projects/rings/badge/?version=latest)](https://rings.readthedocs.io)
 [![image](http://www.javadoc.io/badge/cc.redberry/rings.svg)](http://www.javadoc.io/doc/cc.redberry/rings)
 [![image](http://www.javadoc.io/badge/cc.redberry/rings.scaladsl_2.12.svg?label=scaladoc)](http://www.javadoc.io/doc/cc.redberry/rings.scaladsl_2.12)
-[![image](https://img.shields.io/maven-central/v/cc.redberry/rings/2.svg?style=flat)](https://search.maven.org/#artifactdetails%7Ccc.redberry%7Crings%7C2.5.4%7Cjar)
-[![image](https://img.shields.io/maven-central/v/cc.redberry/rings.scaladsl_2.12/2.svg?style=flat)](https://search.maven.org/#artifactdetails%7Ccc.redberry%7Crings.scaladsl_2.12%7C2.5.4%7Cjar)
+[![image](https://img.shields.io/maven-central/v/cc.redberry/rings/2.svg?style=flat)](https://search.maven.org/#artifactdetails%7Ccc.redberry%7Crings%7C2.5.5%7Cjar)
+[![image](https://img.shields.io/maven-central/v/cc.redberry/rings.scaladsl_2.12/2.svg?style=flat)](https://search.maven.org/#artifactdetails%7Ccc.redberry%7Crings.scaladsl_2.12%7C2.5.5%7Cjar)
 [![image](https://img.shields.io/badge/License-Apache%202.0-blue.svg?style=flat)](https://opensource.org/licenses/Apache-2.0)
 
 Rings: efficient Java/Scala library for polynomial rings
@@ -53,7 +53,7 @@ Now run Rings<i>.repl</i>:
 ``` scala
 $ rings.repl
 Loading...
-Rings 2.5.4: efficient Java/Scala library for polynomial rings
+Rings 2.5.5: efficient Java/Scala library for polynomial rings
 
 @ implicit val ring = MultivariateRing(Z, Array("x", "y", "z"))
 ring: MultivariateRing[IntZ] = MultivariateRing(Z, Array("x", "y", "z"), LEX)
@@ -82,7 +82,7 @@ $ rings.repl myRingsScript.sc
 Rings is currently available for Java and Scala. To get started with Scala SBT, simply add the following dependence to your `build.sbt` file:
 
 ``` scala
-libraryDependencies += "cc.redberry" %% "rings.scaladsl" % "2.5.4"
+libraryDependencies += "cc.redberry" %% "rings.scaladsl" % "2.5.5"
 ```
 
 For using Rings solely in Java there is Maven artifact:
@@ -91,7 +91,7 @@ For using Rings solely in Java there is Maven artifact:
 <dependency>
     <groupId>cc.redberry</groupId>
     <artifactId>rings</artifactId>
-    <version>2.5.4</version>
+    <version>2.5.5</version>
 </dependency>
 ```
 
diff --git a/rings.repl/rings.repl b/rings.repl/rings.repl
index 4a5fe9c..dbbf1d8 100755
--- a/rings.repl/rings.repl
+++ b/rings.repl/rings.repl
@@ -51,7 +51,7 @@ case $os in
     ;;
 esac
 
-ringsVersion=2.5.4
+ringsVersion=2.5.5
 ammArgs=()
 javaArgs=()
 
diff --git a/rings.scaladsl/build.sbt b/rings.scaladsl/build.sbt
index 85874a5..e16da96 100644
--- a/rings.scaladsl/build.sbt
+++ b/rings.scaladsl/build.sbt
@@ -4,7 +4,7 @@ organization := "cc.redberry"
 
 name := "rings.scaladsl"
 
-version := "2.5.4"
+version := "2.5.5"
 
 scalaVersion := "2.12.3"
 
@@ -15,7 +15,7 @@ moduleName := name.value
 resolvers += Resolver.mavenLocal
 
 libraryDependencies ++= Seq(
-  "cc.redberry" % "rings" % "2.5.4",
+  "cc.redberry" % "rings" % "2.5.5",
   "junit" % "junit" % "4.12" % Test,
   "com.novocode" % "junit-interface" % "0.11" % Test exclude("junit", "junit-dep")
 )
diff --git a/rings/pom.xml b/rings/pom.xml
index d504ac6..d5d711c 100644
--- a/rings/pom.xml
+++ b/rings/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>cc.redberry</groupId>
     <artifactId>rings</artifactId>
-    <version>2.5.4</version>
+    <version>2.5.5</version>
     <packaging>jar</packaging>
     <name>rings</name>
     <url>https://github.com/PoslavskySV/rings/</url>