diff --git a/src/policy/policy.h b/src/policy/policy.h
--- a/src/policy/policy.h
+++ b/src/policy/policy.h
@@ -56,8 +56,7 @@
     SCRIPT_VERIFY_MINIMALDATA | SCRIPT_VERIFY_NULLDUMMY |
     SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS | SCRIPT_VERIFY_CLEANSTACK |
     SCRIPT_VERIFY_NULLFAIL | SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY |
-    SCRIPT_VERIFY_CHECKSEQUENCEVERIFY | SCRIPT_VERIFY_LOW_S |
-    SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM;
+    SCRIPT_VERIFY_CHECKSEQUENCEVERIFY | SCRIPT_VERIFY_LOW_S;
 
 /** For convenience, standard but not mandatory verify flags. */
 static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS =
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -87,12 +87,7 @@
     // See BIP112 for details
     SCRIPT_VERIFY_CHECKSEQUENCEVERIFY = (1U << 10),
 
-    // Making v1-v16 witness program non-standard
-    //
-    SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM = (1U << 12),
-
-    // Segwit script only: Require the argument of OP_IF/NOTIF to be exactly
-    // 0x01 or empty vector
+    // Require the argument of OP_IF/NOTIF to be exactly 0x01 or empty vector
     //
     SCRIPT_VERIFY_MINIMALIF = (1U << 13),
 
diff --git a/src/script/script_error.h b/src/script/script_error.h
--- a/src/script/script_error.h
+++ b/src/script/script_error.h
@@ -62,7 +62,6 @@
 
     /* softfork safeness */
     SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS,
-    SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM,
 
     /* misc */
     SCRIPT_ERR_NONCOMPRESSED_PUBKEY,
diff --git a/src/script/script_error.cpp b/src/script/script_error.cpp
--- a/src/script/script_error.cpp
+++ b/src/script/script_error.cpp
@@ -82,8 +82,6 @@
                    "operation";
         case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS:
             return "NOPx reserved for soft-fork upgrades";
-        case SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM:
-            return "Witness version reserved for soft-fork upgrades";
         case SCRIPT_ERR_PUBKEYTYPE:
             return "Public key is neither compressed or uncompressed";
         case SCRIPT_ERR_CLEANSTACK:
diff --git a/src/test/data/tx_valid.json b/src/test/data/tx_valid.json
--- a/src/test/data/tx_valid.json
+++ b/src/test/data/tx_valid.json
@@ -321,22 +321,6 @@
 [[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x14 0x4c9c3dfac4207d5d8cb89df5722cb3d712385e3f", 1000]],
 "010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH"],
 
-["1 byte push should not be considered a witness scriptPubKey"],
-[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x01 0x01", 1000]],
-"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"],
-
-["41 bytes push should not be considered a witness scriptPubKey"],
-[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x29 0xff25429251b5a84f452230a3c75fd886b7fc5a7865ce4a7bb7a9d7c5be6da3dbff0000000000000000", 1000]],
-"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"],
-
-["The witness version must use OP_1 to OP_16 only"],
-[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x01 0x10 0x02 0x0001", 1000]],
-"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"],
-
-["The witness program push must be canonical"],
-[[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x60 0x4c02 0x0001", 1000]],
-"010000000100010000000000000000000000000000000000000000000000000000000000000000000000ffffffff01e803000000000000015100000000", "P2SH,DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"],
-
 ["Non witness Single|AnyoneCanPay hash input's position"],
 [[["0000000000000000000000000000000000000000000000000000000000000100", 0, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1000],
 ["0000000000000000000000000000000000000000000000000000000000000100", 1, "0x21 0x03596d3451025c19dbbdeb932d6bf8bfb4ad499b95b6f88db8899efac102e5fc71 CHECKSIG", 1001]],
diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -79,8 +79,6 @@
     {SCRIPT_ERR_MINIMALIF, "MINIMALIF"},
     {SCRIPT_ERR_SIG_NULLFAIL, "NULLFAIL"},
     {SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS, "DISCOURAGE_UPGRADABLE_NOPS"},
-    {SCRIPT_ERR_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM,
-     "DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM"},
     {SCRIPT_ERR_NONCOMPRESSED_PUBKEY, "NONCOMPRESSED_PUBKEY"},
     {SCRIPT_ERR_ILLEGAL_FORKID, "ILLEGAL_FORKID"},
     {SCRIPT_ERR_MUST_USE_FORKID, "MISSING_FORKID"},
diff --git a/src/test/scriptflags.cpp b/src/test/scriptflags.cpp
--- a/src/test/scriptflags.cpp
+++ b/src/test/scriptflags.cpp
@@ -28,8 +28,6 @@
     {"NULLFAIL", SCRIPT_VERIFY_NULLFAIL},
     {"CHECKLOCKTIMEVERIFY", SCRIPT_VERIFY_CHECKLOCKTIMEVERIFY},
     {"CHECKSEQUENCEVERIFY", SCRIPT_VERIFY_CHECKSEQUENCEVERIFY},
-    {"DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM",
-     SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_WITNESS_PROGRAM},
     {"COMPRESSED_PUBKEYTYPE", SCRIPT_VERIFY_COMPRESSED_PUBKEYTYPE},
     {"SIGHASH_FORKID", SCRIPT_ENABLE_SIGHASH_FORKID},
     {"REPLAY_PROTECTION", SCRIPT_ENABLE_REPLAY_PROTECTION},