diff --git a/requirements.txt b/requirements.txt
index 161185b..3248ef2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@
 #
 biopython==1.72
 click-plugins==1.0.3
-click==6.7
+click==7.0
 coverage==4.5.1
 cycler==0.10.0            # via matplotlib
 kiwisolver==1.0.1         # via matplotlib
@@ -14,7 +14,7 @@ matplotlib==3.0.0
 numpy==1.15.2
 pandas==0.23.4
 pyfaidx==0.5.4.2
-pyparsing==2.2.1          # via matplotlib
+pyparsing==2.2.2          # via matplotlib
 python-dateutil==2.7.3    # via matplotlib, pandas
 pytz==2018.5              # via matplotlib, pandas
 pyyaml==3.13
diff --git a/setup.cfg b/setup.cfg
index 8f7e0f4..ad13a1c 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -45,15 +45,15 @@ zip_safe = False
 include_package_data = True
 packages = aakbar
 install_requires =
-    biopython
+    biopython==1.71
     click>=5.0
-    click_plugins
-    coverage
-    matplotlib
-    numpy
-    pandas
-    pyfaidx
-    pyyaml
+    click_plugins==1.0.3
+    coverage==4.5.1
+    matplotlib==3.0.0
+    numpy==1.15.2
+    pandas==0.23.4
+    pyfaidx==0.5.4.2
+    pyyaml==3.13
 
 [options.package_data]
 * =