diff --git a/.test-conda-env-py3.yml b/.test-conda-env-py3.yml
index f336c9e94a3638652f794f6771e91ddc958e4354..a53d2c220b3ff0f3fe936d3ecfa59c7465281072 100644
--- a/.test-conda-env-py3.yml
+++ b/.test-conda-env-py3.yml
@@ -1,7 +1,7 @@
 name: test-conda-env-py3
 channels:
 - inducer
-- symengine/label/dev
+- symengine
 - conda-forge
 - defaults
 dependencies:
@@ -12,5 +12,5 @@ dependencies:
 - islpy
 - pyopencl
 - python=3.5
-- python-symengine=0.2.0.53.g83912b7=py35_1
+- python-symengine=0.3.0
 # things not in here: loopy boxtree pymbolic pyfmmlib
diff --git a/sumpy/codegen.py b/sumpy/codegen.py
index ab739e4f571de87cd02b7af76628455628ce8a4d..cb56a3c229c80adb753a8696e2ab44b803da40d2 100644
--- a/sumpy/codegen.py
+++ b/sumpy/codegen.py
@@ -69,9 +69,6 @@ class SympyToPymbolicMapper(SympyToPymbolicMapperBase):
             return expr
         elif getattr(expr, "is_Function", False):
             func_name = SympyToPymbolicMapperBase.function_name(self, expr)
-            # SymEngine capitalizes the names of the special functions.
-            if func_name.lower() in _SPECIAL_FUNCTION_NAMES:
-                func_name = func_name.lower()
             return prim.Variable(func_name)(
                     *tuple(self.rec(arg) for arg in expr.args))
         else:
diff --git a/sumpy/symbolic.py b/sumpy/symbolic.py
index 85dbb278eb88e82d753aee0f22b958a23bc67eba..93295bca64b2e5af09b793267b8825a6019f58a6 100644
--- a/sumpy/symbolic.py
+++ b/sumpy/symbolic.py
@@ -81,7 +81,7 @@ Add Basic Mul Pow exp sqrt symbols sympify cos sin atan2 Function Symbol
 Derivative Integer Matrix Subs I pi functions""".split()
 
 if USE_SYMENGINE:
-    from symengine import sympy_compat as sym
+    import symengine as sym
     from pymbolic.interop.symengine import (
         PymbolicToSymEngineMapper as PymbolicToSympyMapper,
         SymEngineToPymbolicMapper as SympyToPymbolicMapper)
diff --git a/sumpy/tools.py b/sumpy/tools.py
index 56c32bf3dbd80ecabcb02a553097deb8e9d85161..f3398b9cb703839d8d4a824f76ddb917416fe606 100644
--- a/sumpy/tools.py
+++ b/sumpy/tools.py
@@ -387,7 +387,7 @@ class KernelCacheWrapper(object):
 def my_syntactic_subs(expr, subst_dict):
     # Workaround for differing substitution semantics between sympy and symengine.
     # FIXME: This is a hack.
-    from sumpy.symbolic import Basic, Subs, Derivative, USE_SYMENGINE
+    from sumpy.symbolic import Basic, Subs, Derivative
 
     if not isinstance(expr, Basic):
         return expr
@@ -416,11 +416,7 @@ def my_syntactic_subs(expr, subst_dict):
 
         if new_expr != expr.expr or any(new_var != var for new_var, var in
                                           zip(new_variables, expr.variables)):
-            # FIXME in SymEngine
-            if USE_SYMENGINE:
-                return Derivative(new_expr, new_variables)
-            else:
-                return Derivative(new_expr, *new_variables)
+            return Derivative(new_expr, *new_variables)
 
         return expr
 
diff --git a/test/test_cse.py b/test/test_cse.py
index 4f957aaa5d20ef4b02d40a5b7c2052c4c6a5345a..8484ee47f92cdc6798f846ae9162d2d45ec0596f 100644
--- a/test/test_cse.py
+++ b/test/test_cse.py
@@ -220,8 +220,7 @@ def test_dont_cse_derivative():
     from sumpy.symbolic import Derivative
     f = Function("f")
 
-    # FIXME
-    deriv = Derivative(f(x+y), (x,)) if USE_SYMENGINE else Derivative(f(x+y), x)
+    deriv = Derivative(f(x+y), x)
 
     name_val, (expr,) = cse(x + y + deriv)