diff --git a/README.md b/README.md
index 2571c18..6b9c8a4 100644
--- a/README.md
+++ b/README.md
@@ -52,7 +52,6 @@ circuit = parser.parse_file("my_circuit.qasm")
 | OpenQASM gate                                                    | Graphix instruction |
 |------------------------------------------------------------------|---------------------|
 | [ccx](https://openqasm.com/language/standard_library.html#ccx)   | CCX                 |
-| [crz](https://openqasm.com/language/standard_library.html#crz)   | RZZ                 |
 | [cx](https://openqasm.com/language/standard_library.html#cx)     | CNOT                |
 | [swap](https://openqasm.com/language/standard_library.html#swap) | SWAP                |
 | [cz](https://openqasm.com/language/standard_library.html#cz)     | CZ                  |
diff --git a/graphix_qasm_parser/parser.py b/graphix_qasm_parser/parser.py
index 11cdbcf..1cdaf86 100644
--- a/graphix_qasm_parser/parser.py
+++ b/graphix_qasm_parser/parser.py
@@ -13,7 +13,7 @@
     ParserRuleContext,
 )
 from graphix import Circuit
-from graphix.instruction import CCX, CNOT, RX, RY, RZ, RZZ, SWAP, H, I, S, X, Y, Z
+from graphix.instruction import CCX, CNOT, RX, RY, RZ, SWAP, H, I, S, X, Y, Z
 from openqasm_parser import qasm3Lexer, qasm3Parser, qasm3ParserVisitor
 
 # override introduced in Python 3.12
@@ -324,9 +324,6 @@ def visitGateCallStatement(self, ctx: qasm3Parser.GateCallStatementContext) -> N
         if gate == "ccx":
             # https://openqasm.com/language/standard_library.html#ccx
             instruction = CCX(target=operands[2], controls=(operands[0], operands[1]))
-        elif gate == "crz":
-            # https://openqasm.com/language/standard_library.html#crz
-            instruction = RZZ(target=operands[1], control=operands[0], angle=rad_to_angle(exprs[0]))
         elif gate == "cx":
             # https://openqasm.com/language/standard_library.html#cx
             instruction = CNOT(target=operands[1], control=operands[0])
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 7dee2ae..57f4266 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -4,7 +4,7 @@
 from typing import TYPE_CHECKING
 
 import pytest
-from graphix.instruction import CCX, CNOT, RX, RY, RZ, RZZ, SWAP, H, S, X, Y, Z
+from graphix.instruction import CCX, CNOT, RX, RY, RZ, SWAP, H, S, X, Y, Z
 
 from graphix_qasm_parser import OpenQASMParser
 
@@ -85,7 +85,6 @@ def test_parse_all_instructions() -> None:  # noqa: PLR0915
 include "qelib1.inc";
 qubit[3] q;
 ccx q[0], q[1], q[2];
-crz(pi/3) q[0], q[1];
 cx q[0], q[1];
 swap q[0], q[1];
 // cz q[0], q[1];
@@ -107,12 +106,6 @@ def test_parse_all_instructions() -> None:  # noqa: PLR0915
     assert instruction.target == 2
     assert instruction.controls == (0, 1)
     instruction = next(iterator)
-    assert isinstance(instruction, RZZ)
-    assert instruction.target == 1
-    assert instruction.control == 0
-    assert isinstance(instruction.angle, float)
-    assert math.isclose(instruction.angle, ANGLE_PI / 3)
-    instruction = next(iterator)
     assert isinstance(instruction, CNOT)
     assert instruction.target == 1
     assert instruction.control == 0