diff --git a/README.rst b/README.rst
index 2fc7323..4506810 100644
--- a/README.rst
+++ b/README.rst
@@ -1,4 +1,4 @@
 cycler: composable cycles
 =========================
 
-Docs: http://matplotlib.org/cycler/
+Docs: https://matplotlib.org/cycler/
diff --git a/appveyor.yml b/appveyor.yml
index 220fa3a..38e946f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -5,7 +5,7 @@ environment:
   global:
     # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
     # /E:ON and /V:ON options are not enabled in the batch script intepreter
-    # See: http://stackoverflow.com/a/13751649/163740
+    # See: https://stackoverflow.com/a/13751649/163740
     CMD_IN_ENV: "cmd /E:ON /V:ON /C .\\ci\\appveyor\\run_with_env.cmd"
 
   matrix:
@@ -34,7 +34,7 @@ environment:
        PYTHON_ARCH: "64"
 
 install:
-  # Install Python (from the official .msi of http://python.org) and pip when
+  # Install Python (from the official .msi of https://python.org) and pip when
   # not already installed.
   - "powershell ./ci/appveyor/install.ps1"
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
diff --git a/ci/appveyor/install.ps1 b/ci/appveyor/install.ps1
index 0f165d8..e79a4f7 100644
--- a/ci/appveyor/install.ps1
+++ b/ci/appveyor/install.ps1
@@ -1,8 +1,8 @@
 # Sample script to install Python and pip under Windows
 # Authors: Olivier Grisel, Jonathan Helmus and Kyle Kastner
-# License: CC0 1.0 Universal: http://creativecommons.org/publicdomain/zero/1.0/
+# License: CC0 1.0 Universal: https://creativecommons.org/publicdomain/zero/1.0/
 
-$MINICONDA_URL = "http://repo.continuum.io/miniconda/"
+$MINICONDA_URL = "https://repo.continuum.io/miniconda/"
 $BASE_URL = "https://www.python.org/ftp/python/"
 $GET_PIP_URL = "https://bootstrap.pypa.io/get-pip.py"
 $GET_PIP_PATH = "C:\get-pip.py"
diff --git a/ci/appveyor/run_with_env.cmd b/ci/appveyor/run_with_env.cmd
index 0c70d63..72cc636 100644
--- a/ci/appveyor/run_with_env.cmd
+++ b/ci/appveyor/run_with_env.cmd
@@ -13,7 +13,7 @@
 ::
 :: More details at:
 :: https://github.com/cython/cython/wiki/64BitCythonExtensionsOnWindows
-:: http://stackoverflow.com/a/13751649/163740
+:: https://stackoverflow.com/a/13751649/163740
 ::
 :: Author: Olivier Grisel
 :: License: BSD 3 clause
diff --git a/conda-recipe/bld.bat b/conda-recipe/bld.bat
index 87b1481..2d84cc9 100644
--- a/conda-recipe/bld.bat
+++ b/conda-recipe/bld.bat
@@ -4,5 +4,5 @@ if errorlevel 1 exit 1
 :: Add more build steps here, if they are necessary.
 
 :: See
-:: http://docs.continuum.io/conda/build.html
+:: https://conda.io/docs/user-guide/tasks/build-packages/index.html
 :: for a list of environment variables that are set during the build process.
diff --git a/conda-recipe/build.sh b/conda-recipe/build.sh
index 4d7fc03..4c6226d 100644
--- a/conda-recipe/build.sh
+++ b/conda-recipe/build.sh
@@ -5,5 +5,5 @@ $PYTHON setup.py install
 # Add more build steps here, if they are necessary.
 
 # See
-# http://docs.continuum.io/conda/build.html
+# https://conda.io/docs/user-guide/tasks/build-packages/index.html
 # for a list of environment variables that are set during the build process.
diff --git a/conda-recipe/meta.yaml b/conda-recipe/meta.yaml
index ea33deb..4adf9f5 100644
--- a/conda-recipe/meta.yaml
+++ b/conda-recipe/meta.yaml
@@ -54,10 +54,10 @@ test:
     # - nose
 
 about:
-  home: http://github.com/matplotlib/cycler
+  home: https://github.com/matplotlib/cycler
   license: BSD
   summary: 'Composable style cycles'
 
 # See
-# http://docs.continuum.io/conda/build.html for
+# https://conda.io/docs/building/build.html for
 # more information about meta.yaml
diff --git a/doc/source/conf.py b/doc/source/conf.py
index fb48a87..4ea2ca6 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -278,7 +278,7 @@
 #texinfo_no_detailmenu = False
 
 intersphinx_mapping = {'python': ('https://docs.python.org/3.4', None),
-                       'matplotlb': ('http://matplotlib.org', None)}
+                       'matplotlb': ('https://matplotlib.org', None)}
 
 ################# numpydoc config ####################
 numpydoc_show_class_members = False
diff --git a/doc/source/index.rst b/doc/source/index.rst
index d584ebf..c93955e 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -11,7 +11,7 @@
 
 
 ====== ====================================
-docs   http://matplotlib.org/cycler
+docs   https://matplotlib.org/cycler
 pypi   https://pypi.python.org/pypi/Cycler
 github https://github.com/matplotlib/cycler
 ====== ====================================
diff --git a/setup.py b/setup.py
index 0cbff1c..3804e0d 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
       author_email='matplotlib-users@python.org',
       py_modules=['cycler'],
       description='Composable style cycles',
-      url='http://github.com/matplotlib/cycler',
+      url='https://github.com/matplotlib/cycler',
       platforms='Cross platform (Linux, Mac OSX, Windows)',
       install_requires=['six'],
       license="BSD",