diff --git a/.gitignore b/.gitignore
index d512c1f..79b7842 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,8 +4,8 @@
 *.iml
 *.ipr
 
+## Other directories
 .gradle/
-gradle/
 build/
 logs/
 data/
@@ -13,6 +13,8 @@ dokka/
 dist/
 out/
 
-/src/main/resources/angular/static/*
-
+## Generated configuration file
 config.properties
+
+## Prevent ignoring the gradle wrapper
+!gradle-wrapper.jar
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..e708b1c
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..69a9715
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists