diff --git a/pom.xml b/pom.xml
index 721e44e..fe3eda7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
     <parent>
         <groupId>com.jcabi</groupId>
         <artifactId>parent</artifactId>
-        <version>0.47</version>
+        <version>0.48.5</version>
     </parent>
     <groupId>io.jare</groupId>
     <artifactId>web</artifactId>
@@ -111,9 +111,9 @@
             <version>0.22</version>
         </dependency>
         <dependency>
-            <groupId>com.google.guava</groupId>
-            <artifactId>guava</artifactId>
-            <version>19.0</version>
+            <groupId>org.cactoos</groupId>
+            <artifactId>cactoos</artifactId>
+            <version>0.11.4</version>
         </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
diff --git a/src/main/java/io/jare/cached/CdBase.java b/src/main/java/io/jare/cached/CdBase.java
index 703503c..104d039 100644
--- a/src/main/java/io/jare/cached/CdBase.java
+++ b/src/main/java/io/jare/cached/CdBase.java
@@ -22,7 +22,6 @@
  */
 package io.jare.cached;
 
-import com.google.common.collect.Iterables;
 import com.jcabi.aspects.Cacheable;
 import io.jare.model.Base;
 import io.jare.model.Domain;
@@ -30,6 +29,7 @@
 import java.util.concurrent.TimeUnit;
 import lombok.EqualsAndHashCode;
 import lombok.ToString;
+import org.cactoos.list.MappedIterable;
 
 /**
  * Cached Base.
@@ -64,7 +64,7 @@ public User user(final String name) {
     @Override
     @Cacheable(lifetime = 1, unit = TimeUnit.MINUTES)
     public Iterable<Domain> domain(final String name) {
-        return Iterables.transform(
+        return new MappedIterable<>(
             this.origin.domain(name),
             CdDomain::new
         );
@@ -73,7 +73,7 @@ public Iterable<Domain> domain(final String name) {
     @Override
     @Cacheable(unit = TimeUnit.HOURS, lifetime = 1)
     public Iterable<Domain> all() {
-        return Iterables.transform(
+        return new MappedIterable<>(
             this.origin.all(),
             CdDomain::new
         );
diff --git a/src/main/java/io/jare/tk/TkRelay.java b/src/main/java/io/jare/tk/TkRelay.java
index 18f1b08..5b89ae1 100644
--- a/src/main/java/io/jare/tk/TkRelay.java
+++ b/src/main/java/io/jare/tk/TkRelay.java
@@ -22,7 +22,6 @@
  */
 package io.jare.tk;
 
-import com.google.common.collect.Iterables;
 import io.jare.model.Base;
 import io.jare.model.Domain;
 import java.io.IOException;
@@ -33,6 +32,8 @@
 import java.util.Iterator;
 import java.util.Locale;
 import java.util.regex.Pattern;
+import org.cactoos.list.ConcatIterable;
+import org.cactoos.list.SkippedIterable;
 import org.takes.HttpException;
 import org.takes.Request;
 import org.takes.Response;
@@ -48,6 +49,7 @@
  * @author Yegor Bugayenko (yegor256@gmail.com)
  * @version $Id$
  * @since 1.0
+ * @checkstyle ClassDataAbstractionCouplingCheck (500 lines)
  */
 final class TkRelay implements Take {
 
@@ -150,14 +152,14 @@ private static Request request(final Request req, final String path) {
         return new Request() {
             @Override
             public Iterable<String> head() throws IOException {
-                return Iterables.concat(
+                return new ConcatIterable<String>(
                     Collections.singleton(
                         String.format(
                             "GET %s HTTP/1.1",
                             path
                         )
                     ),
-                    Iterables.skip(req.head(), 1)
+                    new SkippedIterable<>(req.head(), 1)
                 );
             }
             @Override