diff --git a/eo-maven-plugin/pom.xml b/eo-maven-plugin/pom.xml
index d36f0136b5..b45f0485da 100644
--- a/eo-maven-plugin/pom.xml
+++ b/eo-maven-plugin/pom.xml
@@ -27,7 +27,7 @@ SOFTWARE.
   <parent>
     <groupId>org.eolang</groupId>
     <artifactId>eo-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>0.35.9</version>
   </parent>
   <artifactId>eo-maven-plugin</artifactId>
   <packaging>maven-plugin</packaging>
diff --git a/eo-parser/pom.xml b/eo-parser/pom.xml
index dd8cc5b984..9b2685ffaf 100644
--- a/eo-parser/pom.xml
+++ b/eo-parser/pom.xml
@@ -27,7 +27,7 @@ SOFTWARE.
   <parent>
     <groupId>org.eolang</groupId>
     <artifactId>eo-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>0.35.9</version>
   </parent>
   <artifactId>eo-parser</artifactId>
   <packaging>jar</packaging>
diff --git a/eo-runtime/pom.xml b/eo-runtime/pom.xml
index 944f0ee74d..474cf72f9d 100644
--- a/eo-runtime/pom.xml
+++ b/eo-runtime/pom.xml
@@ -27,7 +27,7 @@ SOFTWARE.
   <parent>
     <groupId>org.eolang</groupId>
     <artifactId>eo-parent</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>0.35.9</version>
   </parent>
   <artifactId>eo-runtime</artifactId>
   <packaging>jar</packaging>
diff --git a/pom.xml b/pom.xml
index d8bbebb1c8..b3b9eac5d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -31,7 +31,7 @@ SOFTWARE.
   </parent>
   <groupId>org.eolang</groupId>
   <artifactId>eo-parent</artifactId>
-  <version>1.0-SNAPSHOT</version>
+  <version>0.35.9</version>
   <packaging>pom</packaging>
   <name>eo</name>
   <modules>