diff --git a/README.md b/README.md
index 491fd831..e149eb99 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ env:
     # Note: TWINE_PASSWORD is set to a PyPI API token in Travis settings
 
 install:
-  - python3 -m pip install cibuildwheel==1.5.4
+  - python3 -m pip install cibuildwheel==1.5.5
 
 script:
   # build the wheels, put them into './wheelhouse'
@@ -152,6 +152,15 @@ This is similar to static linking, so it might have some licence implications. C
 Changelog
 =========
 
+### 1.5.5
+
+_22 July 2020_
+
+- 🐛 Fix a bug that would cause command substitutions in CIBW_ENVIRONMENT to
+  produce no output on Linux (#411)
+- 🐛 Fix regression (introduced in 1.5.3) which caused BEFORE_BUILD and
+  BEFORE_ALL to be executed in the wrong directory (#410)
+
 ### 1.5.4
 
 _19 June 2020_
diff --git a/cibuildwheel/__init__.py b/cibuildwheel/__init__.py
index c24ed73b..63a58789 100644
--- a/cibuildwheel/__init__.py
+++ b/cibuildwheel/__init__.py
@@ -1 +1 @@
-__version__ = '1.5.4'
+__version__ = '1.5.5'
diff --git a/examples/appveyor-minimal.yml b/examples/appveyor-minimal.yml
index 959c4267..0a632024 100644
--- a/examples/appveyor-minimal.yml
+++ b/examples/appveyor-minimal.yml
@@ -12,7 +12,7 @@ stack: python 3.7
 init:
 - cmd: set PATH=C:\Python37;C:\Python37\Scripts;%PATH%
 
-install: python -m pip install cibuildwheel==1.5.4
+install: python -m pip install cibuildwheel==1.5.5
 
 build_script: python -m cibuildwheel --output-dir wheelhouse
 
diff --git a/examples/azure-pipelines-minimal.yml b/examples/azure-pipelines-minimal.yml
index 213c101f..055eb36a 100644
--- a/examples/azure-pipelines-minimal.yml
+++ b/examples/azure-pipelines-minimal.yml
@@ -5,7 +5,7 @@ jobs:
     - task: UsePythonVersion@0
     - bash: |
         python3 -m pip install --upgrade pip
-        pip3 install cibuildwheel==1.5.4
+        pip3 install cibuildwheel==1.5.5
         cibuildwheel --output-dir wheelhouse .
     - task: PublishBuildArtifacts@1
       inputs: {pathtoPublish: 'wheelhouse'}
@@ -16,7 +16,7 @@ jobs:
     - task: UsePythonVersion@0
     - bash: |
         python3 -m pip install --upgrade pip
-        pip3 install cibuildwheel==1.5.4
+        pip3 install cibuildwheel==1.5.5
         cibuildwheel --output-dir wheelhouse .
     - task: PublishBuildArtifacts@1
       inputs: {pathtoPublish: 'wheelhouse'}
@@ -29,7 +29,7 @@ jobs:
       displayName: Install Visual C++ for Python 2.7
     - bash: |
         python -m pip install --upgrade pip
-        pip install cibuildwheel==1.5.4
+        pip install cibuildwheel==1.5.5
         cibuildwheel --output-dir wheelhouse .
     - task: PublishBuildArtifacts@1
       inputs: {pathtoPublish: 'wheelhouse'}
diff --git a/examples/circleci-minimal.yml b/examples/circleci-minimal.yml
index f890e3d5..a7e71c5a 100644
--- a/examples/circleci-minimal.yml
+++ b/examples/circleci-minimal.yml
@@ -11,7 +11,7 @@ jobs:
       - run:
           name: Build the Linux wheels.
           command: |
-            pip3 install --user cibuildwheel==1.5.4
+            pip3 install --user cibuildwheel==1.5.5
             cibuildwheel --output-dir wheelhouse
       - store_artifacts:
           path: wheelhouse/
@@ -25,7 +25,7 @@ jobs:
       - run:
           name: Build the OS X wheels.
           command: |
-            pip3 install --user cibuildwheel==1.5.4
+            pip3 install --user cibuildwheel==1.5.5
             cibuildwheel --output-dir wheelhouse
       - store_artifacts:
           path: wheelhouse/
diff --git a/examples/github-deploy.yml b/examples/github-deploy.yml
index 0db47913..d0aef52f 100644
--- a/examples/github-deploy.yml
+++ b/examples/github-deploy.yml
@@ -28,7 +28,7 @@ jobs:
 
       - name: Install cibuildwheel
         run: |
-          python -m pip install cibuildwheel==1.5.4
+          python -m pip install cibuildwheel==1.5.5
 
       - name: Install Visual C++ for Python 2.7
         if: runner.os == 'Windows'
diff --git a/examples/github-minimal.yml b/examples/github-minimal.yml
index 5bfddc1f..f88b262f 100644
--- a/examples/github-minimal.yml
+++ b/examples/github-minimal.yml
@@ -20,7 +20,7 @@ jobs:
 
       - name: Install cibuildwheel
         run: |
-          python -m pip install cibuildwheel==1.5.4
+          python -m pip install cibuildwheel==1.5.5
 
       - name: Install Visual C++ for Python 2.7
         if: runner.os == 'Windows'
diff --git a/examples/travis-ci-deploy.yml b/examples/travis-ci-deploy.yml
index e1862508..08dc997f 100644
--- a/examples/travis-ci-deploy.yml
+++ b/examples/travis-ci-deploy.yml
@@ -25,7 +25,7 @@ env:
     # Note: TWINE_PASSWORD is set to a PyPI API token in Travis settings
 
 install:
-  - python3 -m pip install cibuildwheel==1.5.4
+  - python3 -m pip install cibuildwheel==1.5.5
 
 script:
   # build the wheels, put them into './wheelhouse'
diff --git a/examples/travis-ci-minimal.yml b/examples/travis-ci-minimal.yml
index 0b73aff3..05fd5240 100644
--- a/examples/travis-ci-minimal.yml
+++ b/examples/travis-ci-minimal.yml
@@ -26,7 +26,7 @@ jobs:
         - ln -s /c/Python38/python.exe /c/Python38/python3.exe
 
 install:
-  - python3 -m pip install cibuildwheel==1.5.4
+  - python3 -m pip install cibuildwheel==1.5.5
 
 script:
   # build the wheels, put them into './wheelhouse'
diff --git a/examples/travis-ci-test-and-deploy.yml b/examples/travis-ci-test-and-deploy.yml
index 193bce04..6b9abd51 100644
--- a/examples/travis-ci-test-and-deploy.yml
+++ b/examples/travis-ci-test-and-deploy.yml
@@ -55,7 +55,7 @@ jobs:
     - stage: deploy
       name: Build and deploy Linux wheels
       services: docker
-      install: python3 -m pip install cibuildwheel==1.5.4
+      install: python3 -m pip install cibuildwheel==1.5.5
       script: python3 -m cibuildwheel --output-dir wheelhouse
       after_success: |
         python3 -m pip install twine
@@ -65,7 +65,7 @@ jobs:
       name: Build and deploy macOS wheels
       os: osx
       language: shell
-      install: python3 -m pip install cibuildwheel==1.5.4
+      install: python3 -m pip install cibuildwheel==1.5.5
       script: python3 -m cibuildwheel --output-dir wheelhouse
       after_success: |
         python3 -m pip install twine
@@ -75,7 +75,7 @@ jobs:
       name: Build and deploy Windows wheels
       os: windows
       language: shell
-      install: python3 -m pip install cibuildwheel==1.5.4
+      install: python3 -m pip install cibuildwheel==1.5.5
       script: python3 -m cibuildwheel --output-dir wheelhouse
       after_success: |
         python3 -m pip install twine
diff --git a/setup.py b/setup.py
index 64b0b39f..513c085e 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ long_description = (this_directory / 'README.md').read_text(encoding='utf-8')
 
 setup(
     name='cibuildwheel',
-    version='1.5.4',
+    version='1.5.5',
     install_requires=['bashlex!=0.13', 'toml'],
     description="Build Python wheels on CI with minimal configuration.",
     long_description=long_description,