diff --git a/yaml/linux/cucumber_hyperexecute_autosplit_sample.yaml b/yaml/linux/cucumber_hyperexecute_autosplit_sample.yaml
index 71f818a..b2446be 100644
--- a/yaml/linux/cucumber_hyperexecute_autosplit_sample.yaml
+++ b/yaml/linux/cucumber_hyperexecute_autosplit_sample.yaml
@@ -19,14 +19,14 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 shell: bash
 
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/linux/cucumber_hyperexecute_autosplit_sample.yaml
diff --git a/yaml/linux/cucumber_hyperexecute_matrix_sample.yaml b/yaml/linux/cucumber_hyperexecute_matrix_sample.yaml
index 1137e95..c6d9f92 100644
--- a/yaml/linux/cucumber_hyperexecute_matrix_sample.yaml
+++ b/yaml/linux/cucumber_hyperexecute_matrix_sample.yaml
@@ -17,7 +17,7 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 matrix:
   cucumbertag: ["@SeleniumPlayground", "@ToDo",
@@ -28,7 +28,7 @@ shell: bash
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/linux/cucumber_hyperexecute_matrix_sample.yaml
diff --git a/yaml/mac/cucumber_hyperexecute_autosplit_sample.yaml b/yaml/mac/cucumber_hyperexecute_autosplit_sample.yaml
index ddb0a58..a609baf 100644
--- a/yaml/mac/cucumber_hyperexecute_autosplit_sample.yaml
+++ b/yaml/mac/cucumber_hyperexecute_autosplit_sample.yaml
@@ -19,14 +19,14 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 shell: bash
 
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/mac/cucumber_hyperexecute_autosplit_sample.yaml
diff --git a/yaml/mac/cucumber_hyperexecute_matrix_sample.yaml b/yaml/mac/cucumber_hyperexecute_matrix_sample.yaml
index e564f08..5179563 100644
--- a/yaml/mac/cucumber_hyperexecute_matrix_sample.yaml
+++ b/yaml/mac/cucumber_hyperexecute_matrix_sample.yaml
@@ -17,7 +17,7 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 matrix:
   cucumbertag: ["@SeleniumPlayground", "@ToDo",
@@ -28,7 +28,7 @@ shell: bash
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/mac/cucumber_hyperexecute_matrix_sample.yaml
diff --git a/yaml/win/cucumber_hyperexecute_autosplit_sample.yaml b/yaml/win/cucumber_hyperexecute_autosplit_sample.yaml
index ad0a7b0..4929df5 100644
--- a/yaml/win/cucumber_hyperexecute_autosplit_sample.yaml
+++ b/yaml/win/cucumber_hyperexecute_autosplit_sample.yaml
@@ -19,12 +19,12 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/win/cucumber_hyperexecute_autosplit_sample.yaml
diff --git a/yaml/win/cucumber_hyperexecute_matrix_sample.yaml b/yaml/win/cucumber_hyperexecute_matrix_sample.yaml
index 4a166f3..64dcf51 100644
--- a/yaml/win/cucumber_hyperexecute_matrix_sample.yaml
+++ b/yaml/win/cucumber_hyperexecute_matrix_sample.yaml
@@ -17,7 +17,7 @@ env:
 # Dependency caching for Windows
 cacheKey: '{{ checksum "pom.xml" }}'
 cacheDirectories:
-  - $CACHE_DIR
+  - ${CACHE_DIR}
 
 matrix:
   cucumbertag: ["@SeleniumPlayground", "@ToDo",
@@ -28,7 +28,7 @@ matrix:
 pre:
   # Download and install packages in the CACHE_DIR.
   # Skip execution of the tests in the pre step
-  - mvn -Dmaven.repo.local=$CACHE_DIR -Dmaven.test.skip=true clean install
+  - mvn -Dmaven.repo.local=${CACHE_DIR} -Dmaven.test.skip=true clean install
 
 post:
   - cat yaml/win/cucumber_hyperexecute_matrix_sample.yaml