diff --git a/src/main/java/de/gnmyt/mcdash/api/installer/PaperInstaller.java b/src/main/java/de/gnmyt/mcdash/api/installer/PaperInstaller.java
index 60ce17e..53dd104 100644
--- a/src/main/java/de/gnmyt/mcdash/api/installer/PaperInstaller.java
+++ b/src/main/java/de/gnmyt/mcdash/api/installer/PaperInstaller.java
@@ -44,7 +44,10 @@ public class PaperInstaller implements VersionInstaller {
             okhttp3.Request request = new okhttp3.Request.Builder().url(String.format(PAPER_API, version)).build();
             okhttp3.Response response = client.newCall(request).execute();
 
-            return response.code() == 200;
+            boolean isValid = response.code() == 200;
+            response.close();
+
+            return isValid;
         } catch (Exception e) {
             LOG.error("An error occurred while checking the paper version", e);
             return false;
diff --git a/src/main/java/de/gnmyt/mcdash/api/installer/PurpurInstaller.java b/src/main/java/de/gnmyt/mcdash/api/installer/PurpurInstaller.java
index db32f82..ec2f665 100644
--- a/src/main/java/de/gnmyt/mcdash/api/installer/PurpurInstaller.java
+++ b/src/main/java/de/gnmyt/mcdash/api/installer/PurpurInstaller.java
@@ -21,7 +21,10 @@ public class PurpurInstaller implements VersionInstaller {
             Request request = new Request.Builder().url(String.format(PURPUR_URL, version)).build();
             Response response = client.newCall(request).execute();
 
-            return response.code() == 200;
+            boolean isValid = response.code() == 200;
+            response.close();
+
+            return isValid;
         } catch (Exception e) {
             LOG.error("An error occurred while checking the purpur version", e);
             return false;