diff --git a/fenixedu-ist-bullet/pom.xml b/fenixedu-ist-bullet/pom.xml
index 54b7d52bc01..d2e21ee6f3f 100644
--- a/fenixedu-ist-bullet/pom.xml
+++ b/fenixedu-ist-bullet/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-bullet</artifactId>
diff --git a/fenixedu-ist-bundle/pom.xml b/fenixedu-ist-bundle/pom.xml
index f1f4d7b9c55..2b8c91b0109 100644
--- a/fenixedu-ist-bundle/pom.xml
+++ b/fenixedu-ist-bundle/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-bundle</artifactId>
diff --git a/fenixedu-ist-cms-components/pom.xml b/fenixedu-ist-cms-components/pom.xml
index db2bf95a12b..a13458fb024 100644
--- a/fenixedu-ist-cms-components/pom.xml
+++ b/fenixedu-ist-cms-components/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-cms-components</artifactId>
diff --git a/fenixedu-ist-delegates/pom.xml b/fenixedu-ist-delegates/pom.xml
index 26e3c47ea65..b58682f95f2 100644
--- a/fenixedu-ist-delegates/pom.xml
+++ b/fenixedu-ist-delegates/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-delegates</artifactId>
diff --git a/fenixedu-ist-giaf-contracts/pom.xml b/fenixedu-ist-giaf-contracts/pom.xml
index 899d54d1630..f12e246ecaa 100644
--- a/fenixedu-ist-giaf-contracts/pom.xml
+++ b/fenixedu-ist-giaf-contracts/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-giaf-contracts</artifactId>
diff --git a/fenixedu-ist-giaf-invoices/pom.xml b/fenixedu-ist-giaf-invoices/pom.xml
index 6e5fb409944..65c3ab74919 100644
--- a/fenixedu-ist-giaf-invoices/pom.xml
+++ b/fenixedu-ist-giaf-invoices/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-giaf-invoices</artifactId>
diff --git a/fenixedu-ist-integration/pom.xml b/fenixedu-ist-integration/pom.xml
index 76898b97ceb..a344702a695 100644
--- a/fenixedu-ist-integration/pom.xml
+++ b/fenixedu-ist-integration/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-integration</artifactId>
diff --git a/fenixedu-ist-libraryspace/pom.xml b/fenixedu-ist-libraryspace/pom.xml
index 08197567104..947876f1a0e 100644
--- a/fenixedu-ist-libraryspace/pom.xml
+++ b/fenixedu-ist-libraryspace/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-libraryspace</artifactId>
diff --git a/fenixedu-ist-parking/pom.xml b/fenixedu-ist-parking/pom.xml
index e27a27102db..c76df865e40 100644
--- a/fenixedu-ist-parking/pom.xml
+++ b/fenixedu-ist-parking/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-parking</artifactId>
diff --git a/fenixedu-ist-quc/pom.xml b/fenixedu-ist-quc/pom.xml
index 5ae37dfdbdc..00a4d58848b 100644
--- a/fenixedu-ist-quc/pom.xml
+++ b/fenixedu-ist-quc/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-quc</artifactId>
diff --git a/fenixedu-ist-registration-process/pom.xml b/fenixedu-ist-registration-process/pom.xml
index 6f53fb8a384..5634f6192d3 100644
--- a/fenixedu-ist-registration-process/pom.xml
+++ b/fenixedu-ist-registration-process/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-registration-process</artifactId>
diff --git a/fenixedu-ist-reports/pom.xml b/fenixedu-ist-reports/pom.xml
index 66f853c67c1..306220c8a45 100644
--- a/fenixedu-ist-reports/pom.xml
+++ b/fenixedu-ist-reports/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-reports</artifactId>
diff --git a/fenixedu-ist-teacher-evaluation/pom.xml b/fenixedu-ist-teacher-evaluation/pom.xml
index 46e2a3a2195..77057440490 100644
--- a/fenixedu-ist-teacher-evaluation/pom.xml
+++ b/fenixedu-ist-teacher-evaluation/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-teacher-evaluation</artifactId>
diff --git a/fenixedu-ist-tutorship/pom.xml b/fenixedu-ist-tutorship/pom.xml
index 733b6cad6bf..449dfde5c39 100644
--- a/fenixedu-ist-tutorship/pom.xml
+++ b/fenixedu-ist-tutorship/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-tutorship</artifactId>
diff --git a/fenixedu-ist-vigilancies/pom.xml b/fenixedu-ist-vigilancies/pom.xml
index 720944ef71c..3102bda7904 100644
--- a/fenixedu-ist-vigilancies/pom.xml
+++ b/fenixedu-ist-vigilancies/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>pt.ist</groupId>
         <artifactId>fenixedu-ist</artifactId>
-        <version>17.19.0-SNAPSHOT</version>
+        <version>17.18.3</version>
     </parent>
 
     <artifactId>fenixedu-ist-vigilancies</artifactId>
diff --git a/pom.xml b/pom.xml
index f48e01ce7f8..917c86803c4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -11,7 +11,7 @@
 
     <groupId>pt.ist</groupId>
     <artifactId>fenixedu-ist</artifactId>
-    <version>17.19.0-SNAPSHOT</version>
+    <version>17.18.3</version>
     <packaging>pom</packaging>
 
     <name>FenixEdu IST Contribution Modules</name>
@@ -62,7 +62,7 @@
         <connection>scm:git:git@github.com:ist-dsi/fenixedu-ist.git</connection>
         <developerConnection>scm:git:git@github.com:ist-dsi/fenixedu-ist.git</developerConnection>
         <url>http://fenixedu.org</url>
-        <tag>HEAD</tag>
+        <tag>v17.18.3</tag>
     </scm>
 
     <dependencyManagement>