diff --git a/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamal.java b/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamal.java
index 4deb0559..23c33d3d 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamal.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamal.java
@@ -13,7 +13,10 @@ import org.pgpainless.key.generation.type.KeyType;
 
 /**
  * ElGamal encryption only key type.
+ *
+ * @deprecated the use of ElGamal is not recommended anymore.
  */
+@Deprecated
 public final class ElGamal implements KeyType {
 
     private final ElGamalLength length;
diff --git a/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamalLength.java b/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamalLength.java
index 852ad6f7..17e79131 100644
--- a/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamalLength.java
+++ b/pgpainless-core/src/main/java/org/pgpainless/key/generation/type/elgamal/ElGamalLength.java
@@ -13,7 +13,10 @@ import org.pgpainless.key.generation.type.KeyLength;
  *
  * @see <a href="https://www.ietf.org/rfc/rfc3526.txt">
  *     RFC-3526: More Modular Exponential (MODP) Diffie-Hellman groups for Internet Key Exchange (IKE)</a>
+ *
+ * @deprecated the use of ElGamal keys is no longer recommended.
  */
+@Deprecated
 public enum ElGamalLength implements KeyLength {
 
     /**