diff --git a/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7 b/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7
index 4e6b63514456..9e0086075896 100644
--- a/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7
+++ b/cddl/contrib/opensolaris/cmd/zpool/zpool-features.7
@@ -531,7 +531,7 @@ boot loader.
 .Bl -column "READ\-ONLY COMPATIBLE" "org.illumos:sha512"
 .It GUID Ta org.illumos:sha512
 .It READ\-ONLY COMPATIBLE Ta no
-.It DEPENDENCIES Ta none
+.It DEPENDENCIES Ta extensible_dataset
 .El
 .Pp
 The
@@ -570,7 +570,7 @@ are destroyed.
 .Bl -column "READ\-ONLY COMPATIBLE" "org.illumos:skein"
 .It GUID Ta org.illumos:skein
 .It READ\-ONLY COMPATIBLE Ta no
-.It DEPENDENCIES Ta none
+.It DEPENDENCIES Ta extensible_dataset
 .El
 .Pp
 The
diff --git a/sys/cddl/contrib/opensolaris/common/zfs/zfeature_common.c b/sys/cddl/contrib/opensolaris/common/zfs/zfeature_common.c
index fe1375fa2222..476f571e6649 100644
--- a/sys/cddl/contrib/opensolaris/common/zfs/zfeature_common.c
+++ b/sys/cddl/contrib/opensolaris/common/zfs/zfeature_common.c
@@ -255,20 +255,33 @@ zpool_feature_init(void)
 	    ZFEATURE_FLAG_PER_DATASET, large_dnode_deps);
 	}
 
+	static const spa_feature_t sha512_deps[] = {
+		SPA_FEATURE_EXTENSIBLE_DATASET,
+		SPA_FEATURE_NONE
+	};
 	zfeature_register(SPA_FEATURE_SHA512,
 	    "org.illumos:sha512", "sha512",
 	    "SHA-512/256 hash algorithm.",
-	    ZFEATURE_FLAG_PER_DATASET, NULL);
+	    ZFEATURE_FLAG_PER_DATASET, sha512_deps);
+
+	static const spa_feature_t skein_deps[] = {
+		SPA_FEATURE_EXTENSIBLE_DATASET,
+		SPA_FEATURE_NONE
+	};
 	zfeature_register(SPA_FEATURE_SKEIN,
 	    "org.illumos:skein", "skein",
 	    "Skein hash algorithm.",
-	    ZFEATURE_FLAG_PER_DATASET, NULL);
+	    ZFEATURE_FLAG_PER_DATASET, skein_deps);
 
 #ifdef illumos
+	static const spa_feature_t edonr_deps[] = {
+		SPA_FEATURE_EXTENSIBLE_DATASET,
+		SPA_FEATURE_NONE
+	};
 	zfeature_register(SPA_FEATURE_EDONR,
 	    "org.illumos:edonr", "edonr",
 	    "Edon-R hash algorithm.",
-	    ZFEATURE_FLAG_PER_DATASET, NULL);
+	    ZFEATURE_FLAG_PER_DATASET, edonr_deps);
 #endif
 
 	zfeature_register(SPA_FEATURE_DEVICE_REMOVAL,