diff --git a/build.gradle b/build.gradle
index 99fc0731..2a001f46 100644
--- a/build.gradle
+++ b/build.gradle
@@ -35,7 +35,7 @@ allprojects {
 
     // checkstyle
     checkstyle {
-        configFile = 'config/checkstyle.xml' as File
+        configFile = "${project.rootDir}/config/checkstyle.xml" as File
         toolVersion = '8.10'
     }
 
diff --git a/pgpainless-core/src/main/java/org/pgpainless/key/selection/keyring/impl/ExactUserId.java b/pgpainless-core/src/main/java/org/pgpainless/key/selection/keyring/impl/ExactUserId.java
index 24165fc7..f0846a30 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/key/selection/keyring/impl/ExactUserId.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/key/selection/keyring/impl/ExactUserId.java
@@ -21,7 +21,6 @@ import org.bouncycastle.openpgp.PGPPublicKeyRing;
 import org.bouncycastle.openpgp.PGPSecretKeyRing;
 import org.pgpainless.key.selection.keyring.PublicKeyRingSelectionStrategy;
 import org.pgpainless.key.selection.keyring.SecretKeyRingSelectionStrategy;
-import org.pgpainless.key.selection.keyring.PublicKeyRingSelectionStrategy;
 
 public class ExactUserId {
 
diff --git a/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java b/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
index e4332ac5..e6899a62 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/util/BCUtil.java
@@ -82,7 +82,7 @@ public class BCUtil {
      */
 
     public static PGPSecretKeyRing getKeyRingFromCollection(PGPSecretKeyRingCollection collection, Long id)
-            throws PGPException, IOException {
+            throws PGPException {
         PGPSecretKeyRing uncleanedRing = collection.getSecretKeyRing(id);
 
         // Determine ids of signed keys
diff --git a/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java b/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
index 097b5712..3e8dea69 100644
--- a/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
+++ b/pgpainless-core/src/test/java/org/pgpainless/BCUtilTest.java
@@ -16,8 +16,6 @@
 package org.pgpainless;
 
 import static junit.framework.TestCase.assertEquals;
-import static junit.framework.TestCase.assertNotNull;
-import static junit.framework.TestCase.assertNull;
 import static junit.framework.TestCase.assertTrue;
 
 import java.io.IOException;
diff --git a/version.gradle b/version.gradle
index 0c154ba6..39112eb4 100644
--- a/version.gradle
+++ b/version.gradle
@@ -1,8 +1,8 @@
 
 allprojects {
     ext {
-        shortVersion = '0.0.1'
-        isSnapshot = true
+        shortVersion = '0.0.1-alpha1'
+        isSnapshot = false
         pgpainlessMinAndroidSdk = 9
         javaSourceCompatibility = 1.8
     }