diff --git a/.github/workflows/build-cibw.yml b/.github/workflows/build-cibw.yml
index 273cc353c..19b7e65ce 100644
--- a/.github/workflows/build-cibw.yml
+++ b/.github/workflows/build-cibw.yml
@@ -7,7 +7,17 @@ on:
   workflow_dispatch:
 
 jobs:
+  get_system_time:
+    runs-on: ubuntu-latest
+    outputs:
+      timestamp: ${{ steps.get_time.outputs.timestamp }}
+    steps:
+      - name: Get system time
+        id: get_time
+        run: echo "timestamp=$(date +'%Y%m%d%H%M')" >> "$GITHUB_OUTPUT"
+
   build_wheels:
+    needs: get_system_time
     runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
@@ -72,7 +82,7 @@ jobs:
       - name: Set Develop Flag
         run: |
           echo "DEVELOP=1" >> $GITHUB_ENV
-          echo "COMMIT_HASH=$(git rev-parse --short=7 "$GITHUB_SHA")" >> $GITHUB_ENV
+          echo "TIMESTAMP=${{ needs.get_system_time.outputs.timestamp }}" >> $GITHUB_ENV
 
       - name: Install Dependencies
         run: |
@@ -96,7 +106,7 @@ jobs:
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux_image }}
           CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.manylinux_image }}
           CIBW_ARCHS: all
-          CIBW_ENVIRONMENT_PASS_LINUX: DEVELOP COMMIT_HASH
+          CIBW_ENVIRONMENT_PASS_LINUX: DEVELOP TIMESTAMP
 
           CIBW_BUILD_FRONTEND: "build"
           CIBW_BEFORE_ALL: bash {project}/build_tools/wheels/cibw_before_all.sh ${{ matrix.python_version }} {project}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91b51fc40..826785bec 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,9 +11,7 @@ set (GTSAM_PRERELEASE_VERSION "a0")
 math (EXPR GTSAM_VERSION_NUMERIC "10000 * ${GTSAM_VERSION_MAJOR} + 100 * ${GTSAM_VERSION_MINOR} + ${GTSAM_VERSION_PATCH}")
 
 if (DEFINED ENV{DEVELOP})
-    string(TIMESTAMP NOW "%Y%m%d%H%M")
-    # set (GTSAM_VERSION_STRING "${GTSAM_VERSION_MAJOR}.${GTSAM_VERSION_MINOR}${GTSAM_PRERELEASE_VERSION}+$ENV{COMMIT_HASH}")
-    set (GTSAM_VERSION_STRING "${GTSAM_VERSION_MAJOR}.${GTSAM_VERSION_MINOR}${GTSAM_PRERELEASE_VERSION}.dev${NOW}")
+    set (GTSAM_VERSION_STRING "${GTSAM_VERSION_MAJOR}.${GTSAM_VERSION_MINOR}${GTSAM_PRERELEASE_VERSION}.dev$ENV{TIMESTAMP}")
     set (SETUP_NAME "gtsam-develop")
 elseif ("${GTSAM_PRERELEASE_VERSION}" STREQUAL "")
     set (GTSAM_VERSION_STRING "${GTSAM_VERSION_MAJOR}.${GTSAM_VERSION_MINOR}.${GTSAM_VERSION_PATCH}")