diff --git a/.github/workflows/pin_versions.py b/.github/workflows/pin_versions.py
index 708659856..9ec9990b7 100755
--- a/.github/workflows/pin_versions.py
+++ b/.github/workflows/pin_versions.py
@@ -88,7 +88,7 @@ def update_setup_cfg_line(version_map: dict[str, str], line, output_file):
 
         write_with_comment(
             comment,
-            f"    {normalized_name} @ {version_map[normalized_name]}",
+            f"    {normalized_name} == {version_map[normalized_name]}",
             output_file,
         )
     else:
diff --git a/.github/workflows/test_data/setup.cfg.pinned b/.github/workflows/test_data/setup.cfg.pinned
index 0a036db5a..a4808a95e 100644
--- a/.github/workflows/test_data/setup.cfg.pinned
+++ b/.github/workflows/test_data/setup.cfg.pinned
@@ -17,27 +17,27 @@ packages = find:
 package_dir =
     =src
 install_requires =
-    bluesky @ 1.12.0
-    pyepics @ 3.5.2
-    blueapi @ 0.3.15
-    flask-restful @ 0.3.10
-    ispyb @ 10.0.0
-    scanspec @ 0.6.5
-    numpy @ 1.26.3
-    nexgen @ 0.8.4
-    opentelemetry-distro @ 0.43b0
-    opentelemetry-exporter-jaeger @ 1.21.0
-    ophyd @ 1.9.0
-    semver @ 3.0.2
+    bluesky == 1.12.0
+    pyepics == 3.5.2
+    blueapi == 0.3.15
+    flask-restful == 0.3.10
+    ispyb == 10.0.0
+    scanspec == 0.6.5
+    numpy == 1.26.3
+    nexgen == 0.8.4
+    opentelemetry-distro == 0.43b0
+    opentelemetry-exporter-jaeger == 1.21.0
+    ophyd == 1.9.0
+    semver == 3.0.2
     # For databroker
-    humanize @ 4.9.0
-    pandas @ 2.2.0
-    xarray @ 2024.1.1
-    doct @ 1.1.0
-    databroker @ 1.2.5
-    dls-dodal @ 1.13.1
+    humanize == 4.9.0
+    pandas == 2.2.0
+    xarray == 2024.1.1
+    doct == 1.1.0
+    databroker == 1.2.5
+    dls-dodal == 1.13.1
     pydantic<2.0 # See https://github.com/DiamondLightSource/hyperion/issues/774
-    scipy @ 1.12.0
+    scipy == 1.12.0
     pyzmq<25 # See https://github.com/DiamondLightSource/hyperion/issues/1103
 
 [options.entry_points]