diff --git a/scalacheck.spec b/scalacheck.spec
index 8a2359e..bbad101 100644
--- a/scalacheck.spec
+++ b/scalacheck.spec
@@ -6,7 +6,7 @@
 %global scala_version 2.13
 
 Name:           scalacheck
-Version:        1.15.3
+Version:        1.15.4
 Release:        1%{?dist}
 Summary:        Property-based testing for Scala
 
@@ -24,6 +24,7 @@ Source3:       Generate.java
 BuildArch:      noarch
 
 BuildRequires:  maven-local
+BuildRequires:  mvn(org.apache.commons:commons-lang3)
 BuildRequires:  mvn(org.scala-sbt:test-interface)
 %if %{without sbt}
 BuildRequires:  mvn(org.scala-lang:scala-compiler)
@@ -92,6 +93,9 @@ sbt package deliverLocal publishM2Configuration
 %license LICENSE
 
 %changelog
+* Thu May  6 2021 Jerry James <loganjerry@gmail.com> - 1.15.4-1
+- Version 1.15.4
+
 * Wed Feb 24 2021 Jerry James <loganjerry@gmail.com> - 1.15.3-1
 - Version 1.15.3
 
diff --git a/scalacheck_2.13-1.15.3.pom b/scalacheck_2.13-1.15.3.pom
deleted file mode 100644
index 80a464c..0000000
--- a/scalacheck_2.13-1.15.3.pom
+++ /dev/null
@@ -1,46 +0,0 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
-    <modelVersion>4.0.0</modelVersion>
-    <groupId>org.scalacheck</groupId>
-    <artifactId>scalacheck_2.13</artifactId>
-    <packaging>jar</packaging>
-    <description>scalacheck</description>
-    <url>http://www.scalacheck.org</url>
-    <version>1.15.3</version>
-    <licenses>
-        <license>
-            <name>BSD 3-clause</name>
-            <url>https://opensource.org/licenses/BSD-3-Clause</url>
-            <distribution>repo</distribution>
-        </license>
-    </licenses>
-    <name>scalacheck</name>
-    <organization>
-        <name>org.scalacheck</name>
-        <url>http://www.scalacheck.org</url>
-    </organization>
-    <scm>
-        <url>https://github.com/typelevel/scalacheck</url>
-        <connection>scm:git:git@github.com:typelevel/scalacheck.git</connection>
-    </scm>
-    <developers>
-        <developer>
-            <id>rickynils</id>
-            <name>Rickard Nilsson</name>
-            <url>https://github.com/rickynils</url>
-            <email>rickynils@gmail.com</email>
-        </developer>
-    </developers>
-    <dependencies>
-        <dependency>
-            <groupId>org.scala-lang</groupId>
-            <artifactId>scala-library</artifactId>
-            <version>2.13.4</version>
-        </dependency>
-        <dependency>
-            <groupId>org.scala-sbt</groupId>
-            <artifactId>test-interface</artifactId>
-            <version>1.0</version>
-        </dependency>
-    </dependencies>
-</project>
\ No newline at end of file
diff --git a/scalacheck_2.13-1.15.4.pom b/scalacheck_2.13-1.15.4.pom
new file mode 100644
index 0000000..2bb9e38
--- /dev/null
+++ b/scalacheck_2.13-1.15.4.pom
@@ -0,0 +1,52 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>org.scalacheck</groupId>
+    <artifactId>scalacheck_2.13</artifactId>
+    <packaging>jar</packaging>
+    <description>scalacheck</description>
+    <url>http://www.scalacheck.org</url>
+    <version>1.15.4</version>
+    <licenses>
+        <license>
+            <name>BSD 3-clause</name>
+            <url>https://opensource.org/licenses/BSD-3-Clause</url>
+            <distribution>repo</distribution>
+        </license>
+    </licenses>
+    <name>scalacheck</name>
+    <organization>
+        <name>org.scalacheck</name>
+        <url>http://www.scalacheck.org</url>
+    </organization>
+    <scm>
+        <url>https://github.com/typelevel/scalacheck</url>
+        <connection>scm:git:git@github.com:typelevel/scalacheck.git</connection>
+    </scm>
+    <developers>
+        <developer>
+            <id>rickynils</id>
+            <name>Rickard Nilsson</name>
+            <url>https://github.com/rickynils</url>
+            <email>rickynils@gmail.com</email>
+        </developer>
+    </developers>
+    <dependencies>
+        <dependency>
+            <groupId>org.scala-lang</groupId>
+            <artifactId>scala-library</artifactId>
+            <version>2.13.5</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+            <version>3.12.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.scala-sbt</groupId>
+            <artifactId>test-interface</artifactId>
+            <version>1.0</version>
+        </dependency>
+    </dependencies>
+</project>
\ No newline at end of file
diff --git a/sources b/sources
index 142f304..eea7af7 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (scalacheck-1.15.3.tar.gz) = 49e5998079b44ad49bdfc3bfc3a2b66fcd017367e36819cbb8dd5b77df5c59808c0ede59327f1cb01145e76dc03652e80bb7c7ec2198c82a4593d656d3becdbb
+SHA512 (scalacheck-1.15.4.tar.gz) = ef864ab9255950206d53c432499e9c5923a904a3c0bede7d07fbdf9ce7041f8f62649479a291ca4393108585731505a5fab4ad0e36158c67590eb1845189ed0a