diff --git a/jna-inchi-all/pom.xml b/jna-inchi-all/pom.xml
index e2e962f..cb8b24d 100644
--- a/jna-inchi-all/pom.xml
+++ b/jna-inchi-all/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-all</artifactId>
   <name>JNA InChI All</name>
diff --git a/jna-inchi-api/pom.xml b/jna-inchi-api/pom.xml
index 170067a..225b5f5 100644
--- a/jna-inchi-api/pom.xml
+++ b/jna-inchi-api/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-api</artifactId>
   <name>JNA InChI API</name>
diff --git a/jna-inchi-core/pom.xml b/jna-inchi-core/pom.xml
index cda62d1..ac3d3bb 100644
--- a/jna-inchi-core/pom.xml
+++ b/jna-inchi-core/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-core</artifactId>
   <name>JNA InChI Core</name>
diff --git a/jna-inchi-darwin-aarch64/pom.xml b/jna-inchi-darwin-aarch64/pom.xml
index 2bd1ec0..b8e75a2 100644
--- a/jna-inchi-darwin-aarch64/pom.xml
+++ b/jna-inchi-darwin-aarch64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-darwin-aarch64</artifactId>
   <name>JNA InChI Darwin AArch64</name>
diff --git a/jna-inchi-darwin-x86-64/pom.xml b/jna-inchi-darwin-x86-64/pom.xml
index 1e62fb2..702bb8a 100644
--- a/jna-inchi-darwin-x86-64/pom.xml
+++ b/jna-inchi-darwin-x86-64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-darwin-x86-64</artifactId>
   <name>JNA InChI Darwin x86-64</name>
diff --git a/jna-inchi-linux-aarch64/pom.xml b/jna-inchi-linux-aarch64/pom.xml
index 0bd0672..fd606b1 100644
--- a/jna-inchi-linux-aarch64/pom.xml
+++ b/jna-inchi-linux-aarch64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-linux-aarch64</artifactId>
   <name>JNA InChI Linux AArch64</name>
diff --git a/jna-inchi-linux-arm/pom.xml b/jna-inchi-linux-arm/pom.xml
index af55b57..e0a116c 100644
--- a/jna-inchi-linux-arm/pom.xml
+++ b/jna-inchi-linux-arm/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-linux-arm</artifactId>
   <name>JNA InChI Linux ARM</name>
diff --git a/jna-inchi-linux-x86-64/pom.xml b/jna-inchi-linux-x86-64/pom.xml
index 7723877..ebfa0ec 100644
--- a/jna-inchi-linux-x86-64/pom.xml
+++ b/jna-inchi-linux-x86-64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-linux-x86-64</artifactId>
   <name>JNA InChI Linux x86-64</name>
diff --git a/jna-inchi-linux-x86/pom.xml b/jna-inchi-linux-x86/pom.xml
index 22f0f9e..4530a62 100644
--- a/jna-inchi-linux-x86/pom.xml
+++ b/jna-inchi-linux-x86/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-linux-x86</artifactId>
   <name>JNA InChI Linux x86</name>
diff --git a/jna-inchi-smiles/pom.xml b/jna-inchi-smiles/pom.xml
index 642c926..810a07a 100644
--- a/jna-inchi-smiles/pom.xml
+++ b/jna-inchi-smiles/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-smiles</artifactId>
   <name>JNA InChI SMILES</name>
diff --git a/jna-inchi-win32-x86-64/pom.xml b/jna-inchi-win32-x86-64/pom.xml
index 50d6b15..298b8a6 100644
--- a/jna-inchi-win32-x86-64/pom.xml
+++ b/jna-inchi-win32-x86-64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-win32-x86-64</artifactId>
   <name>JNA InChI Win32 x86-64</name>
diff --git a/jna-inchi-win32-x86/pom.xml b/jna-inchi-win32-x86/pom.xml
index 06ee3d8..6745687 100644
--- a/jna-inchi-win32-x86/pom.xml
+++ b/jna-inchi-win32-x86/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-inchi-win32-x86</artifactId>
   <name>JNA InChI Win32 x86</name>
diff --git a/jna-rinchi-core/pom.xml b/jna-rinchi-core/pom.xml
index 21496b6..14fbd26 100644
--- a/jna-rinchi-core/pom.xml
+++ b/jna-rinchi-core/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-core</artifactId>
   <name>JNA RInChI Core</name>
diff --git a/jna-rinchi-linux-arm/pom.xml b/jna-rinchi-linux-arm/pom.xml
index 003244f..71fde24 100644
--- a/jna-rinchi-linux-arm/pom.xml
+++ b/jna-rinchi-linux-arm/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-linux-arm</artifactId>
   <name>JNA RInChI Linux ARM</name>
diff --git a/jna-rinchi-linux-x86-64/pom.xml b/jna-rinchi-linux-x86-64/pom.xml
index 87f9aec..fcdae25 100644
--- a/jna-rinchi-linux-x86-64/pom.xml
+++ b/jna-rinchi-linux-x86-64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-linux-x86-64</artifactId>
   <name>JNA RInChI Linux x86-64</name>
diff --git a/jna-rinchi-linux-x86/pom.xml b/jna-rinchi-linux-x86/pom.xml
index d9c2f94..d9b2733 100644
--- a/jna-rinchi-linux-x86/pom.xml
+++ b/jna-rinchi-linux-x86/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-linux-x86</artifactId>
   <name>JNA RInChI Linux x86</name>
diff --git a/jna-rinchi-win32-x86-64/pom.xml b/jna-rinchi-win32-x86-64/pom.xml
index fbc5e09..df282f4 100644
--- a/jna-rinchi-win32-x86-64/pom.xml
+++ b/jna-rinchi-win32-x86-64/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-win32-x86-64</artifactId>
   <name>JNA RInChI Win32 x86-64</name>
diff --git a/jna-rinchi-win32-x86/pom.xml b/jna-rinchi-win32-x86/pom.xml
index be1d3bf..03b7e6d 100644
--- a/jna-rinchi-win32-x86/pom.xml
+++ b/jna-rinchi-win32-x86/pom.xml
@@ -3,7 +3,7 @@
   <parent>
     <groupId>io.github.dan2097</groupId>
     <artifactId>jna-inchi</artifactId>
-    <version>1.3-SNAPSHOT</version>
+    <version>1.2.1</version>
   </parent>
   <artifactId>jna-rinchi-win32-x86</artifactId>
   <name>JNA RInChI Win32 x86</name>
diff --git a/pom.xml b/pom.xml
index b0cfad9..240678d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -2,7 +2,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>io.github.dan2097</groupId>
   <artifactId>jna-inchi</artifactId>
-  <version>1.3-SNAPSHOT</version>
+  <version>1.2.1</version>
   <packaging>pom</packaging>
   <name>JNA InChI</name>
   <description>Parent project for JNA InChI</description>
@@ -41,7 +41,7 @@
     <developerConnection>
       scm:git:https://github.com/dan2097/jna-inchi
     </developerConnection>
-    <tag>HEAD</tag>
+    <tag>jna-inchi-1.2.1</tag>
   </scm>
   <distributionManagement><!--For deployment to Maven Central via OSSRH -->
     <snapshotRepository>