diff --git a/CHANGELOG.md b/CHANGELOG.md
index b093b39e..07f9333e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@
 
 # Changelog
 
-## 12.0.0 (upcoming)
+## 12.0.0 (April 18, 2021)
 
 - Prefix all command names with an underscore to mark them as internal (for hiding them from the user in some clients):
   - `ltex.addToDictionary` → `_ltex.addToDictionary`
diff --git a/ltexls-languagetool-patch/pom.xml b/ltexls-languagetool-patch/pom.xml
index 3391edc0..db122695 100644
--- a/ltexls-languagetool-patch/pom.xml
+++ b/ltexls-languagetool-patch/pom.xml
@@ -11,7 +11,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.bsplines</groupId>
   <artifactId>ltexls-languagetool-patch</artifactId>
-  <version>12.0.0-alpha.2</version>
+  <version>12.0.0</version>
   <properties>
     <maven.compiler.release>11</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
diff --git a/ltexls/pom.xml b/ltexls/pom.xml
index 2048fa5b..4cb4b23e 100644
--- a/ltexls/pom.xml
+++ b/ltexls/pom.xml
@@ -11,7 +11,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.bsplines</groupId>
   <artifactId>ltexls</artifactId>
-  <version>12.0.0-alpha.2</version>
+  <version>12.0.0</version>
   <properties>
     <maven.compiler.release>11</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>