diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6f06281b..720dfd40 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,7 +8,7 @@ repository.
 
 Since we follow [semver](https://semver.org/),
 when a new feature is released we don't backport it but simply
-create a new version branch, such as `1.8.x`. Bugs, instead,
+create a new version branch, such as `1.9.x`. Bugs, instead,
 might be backported from `1.1.0` to, for example, `1.0.x` and we
 will have a new [release](https://github.com/abs-lang/abs/releases),
 say `1.0.1` for the `1.0.x` version branch.
diff --git a/docs/installer.sh b/docs/installer.sh
index 042f6242..086804e1 100644
--- a/docs/installer.sh
+++ b/docs/installer.sh
@@ -27,7 +27,7 @@ if [ "${MACHINE_TYPE}" = 'x86_64' ]; then
   ARCH="amd64"
 fi
 
-VERSION=1.8.0
+VERSION=1.9.0
 
 echo "Trying to detect the details of your architecture."
 echo ""
diff --git a/docs/misc/3pl.md b/docs/misc/3pl.md
index 278edb61..3dfde430 100644
--- a/docs/misc/3pl.md
+++ b/docs/misc/3pl.md
@@ -66,7 +66,7 @@ another file is specified:
 
 ```
 $ ~/projects/abs/builds/abs                                          
-Hello alex, welcome to the ABS (1.8.0) programming language!
+Hello alex, welcome to the ABS (1.9.0) programming language!
 Type 'quit' when you're done, 'help' if you get lost!
 
 ⧐  require("abs-sample-module")
diff --git a/docs/types/builtin-function.md b/docs/types/builtin-function.md
index 7a5aafaf..c63b9509 100644
--- a/docs/types/builtin-function.md
+++ b/docs/types/builtin-function.md
@@ -290,7 +290,7 @@ $ cat ~/.absrc
 source("~/abs/lib/library.abs")
 
 $ abs
-Hello user, welcome to the ABS (1.8.0) programming language!
+Hello user, welcome to the ABS (1.9.0) programming language!
 Type 'quit' when you are done, 'help' if you get lost!
 ⧐ adder(1, 2)
 3
diff --git a/main.go b/main.go
index 32f9ed08..14e101c7 100644
--- a/main.go
+++ b/main.go
@@ -8,7 +8,7 @@ import (
 	"github.com/abs-lang/abs/repl"
 )
 
-var Version = "1.8.0"
+var Version = "1.9.0"
 
 // The ABS interpreter
 func main() {