diff --git a/requirements_dev.txt b/requirements_dev.txt
index decd345b..ef2d4053 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -19,4 +19,4 @@ numpy>=1.16.0
 cython>=0.25
 ipython>=5.3.0
 coveralls
-sympl @ git+https://github.com/JoyMonteiro/sympl.git
+sympl==0.5.0
diff --git a/setup.py b/setup.py
index 17e76417..65fbe2fd 100644
--- a/setup.py
+++ b/setup.py
@@ -43,7 +43,7 @@
     "pint>=0.7.0",
     "unyt",
     "xarray>=0.8.0",
-    "sympl @ git+https://github.com/JoyMonteiro/sympl.git",
+    "sympl==0.5.0",
     "cython>=0.25",
     "scipy>=0.18.1",
 ]
@@ -166,7 +166,7 @@ def guess_compiler_name(env_name):
             for line in files:
                 if re.match(r"libgfortran\.a", line):
                     # Avoid i386 libs on 64bit systems
-                    if not ("i386" in root):
+                    if "i386" not in root:
                         if root not in lib_path_list:
                             lib_path_list.append(root)