diff --git a/.idea/libraries/antlr_4_7_2_complete.xml b/.idea/libraries/antlr_4_7_2_complete.xml
deleted file mode 100644
index c00e45e97..000000000
--- a/.idea/libraries/antlr_4_7_2_complete.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<component name="libraryTable">
-  <library name="antlr-4.7.2-complete">
-    <CLASSES>
-      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-4.7.2-complete.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/antlr_4_8_complete.xml b/.idea/libraries/antlr_4_9_complete.xml
similarity index 57%
rename from .idea/libraries/antlr_4_8_complete.xml
rename to .idea/libraries/antlr_4_9_complete.xml
index 839920784..a60ab6605 100644
--- a/.idea/libraries/antlr_4_8_complete.xml
+++ b/.idea/libraries/antlr_4_9_complete.xml
@@ -1,7 +1,7 @@
 <component name="libraryTable">
-  <library name="antlr-4.8-complete">
+  <library name="antlr-4.9-complete">
     <CLASSES>
-      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-4.8-complete.jar!/" />
+      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-4.9-complete.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />
diff --git a/.idea/libraries/antlr_runtime_4_7_2.xml b/.idea/libraries/antlr_runtime_4_7_2.xml
deleted file mode 100644
index c4954e8af..000000000
--- a/.idea/libraries/antlr_runtime_4_7_2.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<component name="libraryTable">
-  <library name="antlr-runtime-4.7.2">
-    <CLASSES>
-      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-runtime-4.7.2.jar!/" />
-    </CLASSES>
-    <JAVADOC />
-    <SOURCES />
-  </library>
-</component>
\ No newline at end of file
diff --git a/.idea/libraries/antlr_runtime_4_8.xml b/.idea/libraries/antlr_runtime_4_9.xml
similarity index 76%
rename from .idea/libraries/antlr_runtime_4_8.xml
rename to .idea/libraries/antlr_runtime_4_9.xml
index 702529a49..719f41216 100644
--- a/.idea/libraries/antlr_runtime_4_8.xml
+++ b/.idea/libraries/antlr_runtime_4_9.xml
@@ -1,7 +1,7 @@
 <component name="libraryTable">
-  <library name="antlr-runtime-4.8">
+  <library name="antlr-runtime-4.9">
     <CLASSES>
-      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-runtime-4.8.jar!/" />
+      <root url="jar://$PROJECT_DIR$/parser/antlr/lib/antlr-runtime-4.9.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES />
diff --git a/compiler/compiler.iml b/compiler/compiler.iml
index e395947e5..3abee245a 100644
--- a/compiler/compiler.iml
+++ b/compiler/compiler.iml
@@ -14,6 +14,6 @@
     <orderEntry type="module" module-name="parser" />
     <orderEntry type="library" name="unittest-libs" level="project" />
     <orderEntry type="library" name="kotlinx-cli-jvm-0.1.0-dev-5" level="project" />
-    <orderEntry type="library" name="antlr-runtime-4.8" level="project" />
+    <orderEntry type="library" name="antlr-runtime-4.9" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/compiler/res/version.txt b/compiler/res/version.txt
index 833e069fa..873816034 100644
--- a/compiler/res/version.txt
+++ b/compiler/res/version.txt
@@ -1 +1 @@
-5.5-SNAPSHOT
+6.0-SNAPSHOT
diff --git a/parser/antlr/lib/antlr-4.8-complete.jar b/parser/antlr/lib/antlr-4.9-complete.jar
similarity index 82%
rename from parser/antlr/lib/antlr-4.8-complete.jar
rename to parser/antlr/lib/antlr-4.9-complete.jar
index 89a0640e2..c1ca306cc 100644
Binary files a/parser/antlr/lib/antlr-4.8-complete.jar and b/parser/antlr/lib/antlr-4.9-complete.jar differ
diff --git a/parser/antlr/lib/antlr-runtime-4.8.jar b/parser/antlr/lib/antlr-runtime-4.9.jar
similarity index 88%
rename from parser/antlr/lib/antlr-runtime-4.8.jar
rename to parser/antlr/lib/antlr-runtime-4.9.jar
index c75f90f0c..c18a4dc4d 100644
Binary files a/parser/antlr/lib/antlr-runtime-4.8.jar and b/parser/antlr/lib/antlr-runtime-4.9.jar differ
diff --git a/parser/build.gradle b/parser/build.gradle
index 1eba273b1..0e01c1c67 100644
--- a/parser/build.gradle
+++ b/parser/build.gradle
@@ -20,10 +20,10 @@ configurations {
 }
 
 dependencies {
-    antlr 'org.antlr:antlr4:4.8'
-    implementation 'org.antlr:antlr4-runtime:4.8'
+    antlr 'org.antlr:antlr4:4.9'
+    implementation 'org.antlr:antlr4-runtime:4.9'
 
-//    antlr('org.antlr:antlr4:4.8') {
+//    antlr('org.antlr:antlr4:4.9') {
 //        exclude group: 'com.ibm.icu', module: 'icu4j'
 //    }
 }
diff --git a/parser/parser.iml b/parser/parser.iml
index cd8426fc9..f24e94ed4 100644
--- a/parser/parser.iml
+++ b/parser/parser.iml
@@ -8,6 +8,6 @@
     </content>
     <orderEntry type="jdk" jdkName="openjdk-11" jdkType="JavaSDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="antlr-4.8-complete" level="project" />
+    <orderEntry type="library" name="antlr-4.9-complete" level="project" />
   </component>
 </module>
\ No newline at end of file