diff --git a/apache-ivy-publication-date.patch b/apache-ivy-publication-date.patch
new file mode 100644
index 0000000..4a5fafb
--- /dev/null
+++ b/apache-ivy-publication-date.patch
@@ -0,0 +1,42 @@
+--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java	2023-09-19 08:19:56.006332869 +0200
++++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/cache/DefaultRepositoryCacheManager.java	2023-09-19 08:20:15.856475360 +0200
+@@ -1472,7 +1472,7 @@
+     }
+ 
+     private Artifact getDefaultMetadataArtifact(ModuleRevisionId mrid) {
+-        return new DefaultArtifact(mrid, new Date(), "metadata", "metadata", "ivy", true);
++        return new DefaultArtifact(mrid, System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date(), "metadata", "metadata", "ivy", true);
+     }
+ 
+     // not used any more, but may be useful for finer grained locking when downloading artifacts
+--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultArtifact.java	2023-09-19 08:19:56.009666226 +0200
++++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultArtifact.java	2023-09-19 08:20:27.823227936 +0200
+@@ -100,7 +100,7 @@
+             throw new NullPointerException("null arid not allowed");
+         }
+         if (publicationDate == null) {
+-            publicationDate = new Date();
++            publicationDate = System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date();
+         }
+         this.publicationDate = publicationDate;
+         this.arid = arid;
+--- apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultModuleDescriptor.java	2023-09-19 08:19:56.009666226 +0200
++++ apache-ivy-2.5.2/src/java/org/apache/ivy/core/module/descriptor/DefaultModuleDescriptor.java	2023-09-19 08:21:12.330214087 +0200
+@@ -272,7 +272,7 @@
+         this.resolvedRevId = id;
+         this.status = status;
+         this.publicationDate = pubDate;
+-        this.resolvedPublicationDate = publicationDate == null ? new Date() : publicationDate;
++        this.resolvedPublicationDate = publicationDate == null ? (System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date()) : publicationDate;
+         this.isDefault = isDefault;
+         this.parser = XmlModuleDescriptorParser.getInstance();
+     }
+@@ -308,7 +308,7 @@
+     public void setPublicationDate(Date publicationDate) {
+         this.publicationDate = publicationDate;
+         if (resolvedPublicationDate == null) {
+-            resolvedPublicationDate = publicationDate == null ? new Date() : publicationDate;
++            resolvedPublicationDate = publicationDate == null ? (System.getenv("SOURCE_DATE_EPOCH") != null ? new Date(1000 * Long.parseLong(System.getenv("SOURCE_DATE_EPOCH"))) : new Date()) : publicationDate;
+         }
+     }
+ 
diff --git a/apache-ivy.spec b/apache-ivy.spec
index 631f6ce..ba085e2 100644
--- a/apache-ivy.spec
+++ b/apache-ivy.spec
@@ -31,11 +31,12 @@ Source0:        https://archive.apache.org/dist/ant/ivy/%{version}/%{name}-%{ver
 Source1:        ivy.1
 Source2:        https://repo1.maven.org/maven2/org/apache/ivy/ivy/%{version}/ivy-%{version}.pom
 Patch0:         apache-ivy-global-settings.patch
+Patch1:         apache-ivy-publication-date.patch
 BuildRequires:  ant
 BuildRequires:  bouncycastle-pg
 BuildRequires:  fdupes
 BuildRequires:  java-devel >= 1.8
-BuildRequires:  javapackages-local
+BuildRequires:  javapackages-local >= 6
 BuildRequires:  jsch
 BuildRequires:  oro
 BuildConflicts: java-devel >= 14
@@ -75,11 +76,10 @@ JavaDoc documentation for %{name}
 %prep
 %setup -q
 %patch0 -p1
+%patch1 -p1
 
 cp %{SOURCE2} pom.xml
 
-%pom_remove_parent .
-
 %pom_remove_dep :jsch.agentproxy
 
 %if %{without httpclient}
@@ -151,7 +151,7 @@ install -p -m644 build/artifact/jars/ivy.jar %{buildroot}%{_javadir}/ivy.jar
 ln -sf ../ivy.jar %{buildroot}%{_javadir}/%{name}/ivy.jar
 
 install -d -m 0755 %{buildroot}/%{_mavenpomdir}/
-install -m 0644 pom.xml %{buildroot}/%{_mavenpomdir}/JPP-ivy.pom
+%mvn_install_pom pom.xml %{buildroot}/%{_mavenpomdir}/JPP-ivy.pom
 # Maven depmap
 %add_maven_depmap JPP-ivy.pom ivy.jar