diff --git a/pgpainless-sop/src/test/java/org/pgpainless/sop/CarolKeySignEncryptRoundtripTest.java b/pgpainless-sop/src/test/java/org/pgpainless/sop/CarolKeySignEncryptRoundtripTest.java
index 83778106..d994c9bc 100644
--- a/pgpainless-sop/src/test/java/org/pgpainless/sop/CarolKeySignEncryptRoundtripTest.java
+++ b/pgpainless-sop/src/test/java/org/pgpainless/sop/CarolKeySignEncryptRoundtripTest.java
@@ -8,6 +8,7 @@ import static org.junit.jupiter.api.Assertions.assertArrayEquals;
 
 import java.io.IOException;
 
+import org.junit.jupiter.api.Disabled;
 import org.junit.jupiter.api.Test;
 import sop.ByteArrayAndResult;
 import sop.DecryptionResult;
@@ -15,6 +16,7 @@ import sop.EncryptionResult;
 import sop.ReadyWithResult;
 import sop.testsuite.assertions.VerificationListAssert;
 
+@Disabled("Carol is an ElGamal key, which are no longer supported.")
 public class CarolKeySignEncryptRoundtripTest {
 
     private static final String CAROL_KEY = "-----BEGIN PGP PRIVATE KEY BLOCK-----\n" +
diff --git a/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessDetachedSignDetachedVerifyTest.java b/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessDetachedSignDetachedVerifyTest.java
index dff9e86f..28fc3d6a 100644
--- a/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessDetachedSignDetachedVerifyTest.java
+++ b/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessDetachedSignDetachedVerifyTest.java
@@ -8,6 +8,8 @@ import org.junit.jupiter.api.Disabled;
 import sop.SOP;
 import sop.testsuite.operation.DetachedSignDetachedVerifyTest;
 
+import java.io.IOException;
+
 public class PGPainlessDetachedSignDetachedVerifyTest extends DetachedSignDetachedVerifyTest {
 
     @Override
@@ -15,4 +17,10 @@ public class PGPainlessDetachedSignDetachedVerifyTest extends DetachedSignDetach
     public void verifyMissingCertCausesMissingArg(SOP sop) {
         super.verifyMissingCertCausesMissingArg(sop);
     }
+
+    @Override
+    @Disabled("Carol is an ElGamal key, which are no longer supported.")
+    public void signVerifyWithCarolKey(SOP sop) throws IOException {
+        super.signVerifyWithCarolKey(sop);
+    }
 }
diff --git a/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessInlineSignInlineVerifyTest.java b/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessInlineSignInlineVerifyTest.java
index 16166eb1..deb9d6b5 100644
--- a/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessInlineSignInlineVerifyTest.java
+++ b/pgpainless-sop/src/test/java/sop/testsuite/pgpainless/operation/PGPainlessInlineSignInlineVerifyTest.java
@@ -4,8 +4,17 @@
 
 package sop.testsuite.pgpainless.operation;
 
+import org.junit.jupiter.api.Disabled;
+import sop.SOP;
 import sop.testsuite.operation.InlineSignInlineVerifyTest;
 
+import java.io.IOException;
+
 public class PGPainlessInlineSignInlineVerifyTest extends InlineSignInlineVerifyTest {
 
+    @Override
+    @Disabled("Carol is an ElGamal key, which is no longer supported.")
+    public void inlineSignVerifyCarol(SOP sop) throws IOException {
+        super.inlineSignVerifyCarol(sop);
+    }
 }