diff --git a/man/man5/zpool-features.5 b/man/man5/zpool-features.5
index dcfb30d187..ffefd41296 100644
--- a/man/man5/zpool-features.5
+++ b/man/man5/zpool-features.5
@@ -464,7 +464,7 @@ improving performance by avoiding the use of spill blocks.
 l l .
 GUID	org.illumos:sha512
 READ\-ONLY COMPATIBLE	no
-DEPENDENCIES	none
+DEPENDENCIES	extensible_dataset
 .TE
 
 This feature enables the use of the SHA-512/256 truncated hash algorithm
@@ -497,7 +497,7 @@ the updated GRUB stage2 module is installed).
 l l .
 GUID	org.illumos:skein
 READ\-ONLY COMPATIBLE	no
-DEPENDENCIES	none
+DEPENDENCIES	extensible_dataset
 .TE
 
 This feature enables the use of the Skein hash algorithm for checksum
@@ -533,7 +533,7 @@ error.
 l l .
 GUID	org.illumos:edonr
 READ\-ONLY COMPATIBLE	no
-DEPENDENCIES	none
+DEPENDENCIES	extensible_dataset
 .TE
 
 This feature enables the use of the Edon-R hash algorithm for checksum,
diff --git a/module/zfs/zfeature_common.c b/module/zfs/zfeature_common.c
index e8b0a16aed..9beb4903e5 100644
--- a/module/zfs/zfeature_common.c
+++ b/module/zfs/zfeature_common.c
@@ -253,16 +253,36 @@ zpool_feature_init(void)
 	    "Variable on-disk size of dnodes.",
 	    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);
+	}
+
+	{
+	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);
+	}
 }