diff --git a/dependencies.yaml b/dependencies.yaml
index c9bc2eb1f4b..ca17917c905 100644
--- a/dependencies.yaml
+++ b/dependencies.yaml
@@ -431,8 +431,8 @@ dependencies:
           # be highly dependent on the exact build configuration, so we'll just
           # avoid 17.0.0 for now unless we observe similar issues in future
           # releases as well.
-          - pyarrow>=14.0.0,<18.0.0a0; platform_machine='x86_64'
-          - pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine='aarch64'
+          - pyarrow>=14.0.0,<18.0.0a0; platform_machine=='x86_64'
+          - pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine=='aarch64'
   cuda_version:
     specific:
       - output_types: conda
diff --git a/python/cudf/pyproject.toml b/python/cudf/pyproject.toml
index 3a3b27002b8..feab04ffadc 100644
--- a/python/cudf/pyproject.toml
+++ b/python/cudf/pyproject.toml
@@ -30,8 +30,8 @@ dependencies = [
     "packaging",
     "pandas>=2.0,<2.2.4dev0",
     "ptxcompiler",
-    "pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine='aarch64'",
-    "pyarrow>=14.0.0,<18.0.0a0; platform_machine='x86_64'",
+    "pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine=='aarch64'",
+    "pyarrow>=14.0.0,<18.0.0a0; platform_machine=='x86_64'",
     "pylibcudf==24.12.*,>=0.0.0a0",
     "rich",
     "rmm==24.12.*,>=0.0.0a0",
diff --git a/python/pylibcudf/pyproject.toml b/python/pylibcudf/pyproject.toml
index 29af611a85d..c9a685de3e9 100644
--- a/python/pylibcudf/pyproject.toml
+++ b/python/pylibcudf/pyproject.toml
@@ -22,8 +22,8 @@ dependencies = [
     "libcudf==24.12.*,>=0.0.0a0",
     "nvtx>=0.2.1",
     "packaging",
-    "pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine='aarch64'",
-    "pyarrow>=14.0.0,<18.0.0a0; platform_machine='x86_64'",
+    "pyarrow>=14.0.0,<18.0.0a0,!=17.0.0; platform_machine=='aarch64'",
+    "pyarrow>=14.0.0,<18.0.0a0; platform_machine=='x86_64'",
     "rmm==24.12.*,>=0.0.0a0",
     "typing_extensions>=4.0.0",
 ] # This list was generated by `rapids-dependency-file-generator`. To make changes, edit ../../dependencies.yaml and run `rapids-dependency-file-generator`.