diff --git a/common/lib/calc/setup.py b/common/lib/calc/setup.py
index 361884babf..e072e44a9a 100644
--- a/common/lib/calc/setup.py
+++ b/common/lib/calc/setup.py
@@ -5,7 +5,7 @@ setup(
     version="0.2",
     packages=["calc"],
     install_requires=[
-        "pyparsing==1.5.6",
+        "pyparsing==2.0.1",
         "numpy",
         "scipy"
     ],
diff --git a/common/lib/chem/setup.py b/common/lib/chem/setup.py
index 642c9a4fe5..f275ea4d25 100644
--- a/common/lib/chem/setup.py
+++ b/common/lib/chem/setup.py
@@ -5,7 +5,7 @@ setup(
     version="0.1.1",
     packages=["chem"],
     install_requires=[
-        "pyparsing==1.5.6",
+        "pyparsing==2.0.1",
         "numpy",
         "scipy",
         "nltk==2.0.4",
diff --git a/requirements/edx-sandbox/base.txt b/requirements/edx-sandbox/base.txt
index 6612d7ab2b..931e15f88b 100644
--- a/requirements/edx-sandbox/base.txt
+++ b/requirements/edx-sandbox/base.txt
@@ -7,5 +7,5 @@
 numpy==1.6.2
 networkx==1.7
 sympy==0.7.1
-pyparsing==1.5.6
+pyparsing==2.0.1
 nltk==2.0.4
diff --git a/requirements/edx/base.txt b/requirements/edx/base.txt
index 80b3184fab..1aba183820 100644
--- a/requirements/edx/base.txt
+++ b/requirements/edx/base.txt
@@ -56,7 +56,7 @@ pycrypto>=2.6
 pygments==1.6
 pygraphviz==1.1
 pymongo==2.4.1
-pyparsing==1.5.6
+pyparsing==2.0.1
 python-memcached==1.48
 python-openid==2.2.5
 python-dateutil==2.1