diff --git a/02_basics/build.sbt b/02_basics/build.sbt
index 961fa7d..615e45a 100644
--- a/02_basics/build.sbt
+++ b/02_basics/build.sbt
@@ -1,2 +1,2 @@
-scalaVersion := "3.3.0"
+scalaVersion := "3.3.4"
 libraryDependencies += "org.creativescala" %% "doodle" % "0.9.25"
\ No newline at end of file
diff --git a/03_domain_modeling/build.sbt b/03_domain_modeling/build.sbt
index 9bec401..3303f03 100644
--- a/03_domain_modeling/build.sbt
+++ b/03_domain_modeling/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/04_collections/build.sbt b/04_collections/build.sbt
index 9bec401..3303f03 100644
--- a/04_collections/build.sbt
+++ b/04_collections/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/05_loops/build.sbt b/05_loops/build.sbt
index 961fa7d..615e45a 100644
--- a/05_loops/build.sbt
+++ b/05_loops/build.sbt
@@ -1,2 +1,2 @@
-scalaVersion := "3.3.0"
+scalaVersion := "3.3.4"
 libraryDependencies += "org.creativescala" %% "doodle" % "0.9.25"
\ No newline at end of file
diff --git a/08_modules/build.sbt b/08_modules/build.sbt
index 9bec401..3303f03 100644
--- a/08_modules/build.sbt
+++ b/08_modules/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/09_reasoning_about_code/build.sbt b/09_reasoning_about_code/build.sbt
index c7ecc2a..bf86305 100644
--- a/09_reasoning_about_code/build.sbt
+++ b/09_reasoning_about_code/build.sbt
@@ -1,4 +1,4 @@
-ThisBuild / scalaVersion := "3.3.0"
+ThisBuild / scalaVersion := "3.3.4"
 
 val js =
   project.in(file("js"))
diff --git a/10_testing/build.sbt b/10_testing/build.sbt
index b461d8b..3447f74 100644
--- a/10_testing/build.sbt
+++ b/10_testing/build.sbt
@@ -1,4 +1,4 @@
-scalaVersion := "3.3.0"
+scalaVersion := "3.3.4"
 libraryDependencies ++=
   Seq(
     "org.scalameta" %% "munit"            % "0.7.29" % Test,
diff --git a/11_type_directed_programming/build.sbt b/11_type_directed_programming/build.sbt
index 9bec401..3303f03 100644
--- a/11_type_directed_programming/build.sbt
+++ b/11_type_directed_programming/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/12_extension_methods_and_implicit_conversions/build.sbt b/12_extension_methods_and_implicit_conversions/build.sbt
index 9bec401..3303f03 100644
--- a/12_extension_methods_and_implicit_conversions/build.sbt
+++ b/12_extension_methods_and_implicit_conversions/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/13_error_handling/build.sbt b/13_error_handling/build.sbt
index 9bec401..3303f03 100644
--- a/13_error_handling/build.sbt
+++ b/13_error_handling/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/14_asynchronous_programming/build.sbt b/14_asynchronous_programming/build.sbt
index 9bec401..3303f03 100644
--- a/14_asynchronous_programming/build.sbt
+++ b/14_asynchronous_programming/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file
diff --git a/15_phone_mnemonics/build.sbt b/15_phone_mnemonics/build.sbt
index 9bec401..3303f03 100644
--- a/15_phone_mnemonics/build.sbt
+++ b/15_phone_mnemonics/build.sbt
@@ -1 +1 @@
-scalaVersion := "3.3.0"
\ No newline at end of file
+scalaVersion := "3.3.4"
\ No newline at end of file