diff --git a/src/_imaging.c b/src/_imaging.c
index 847eed5ce..96bfe5df7 100644
--- a/src/_imaging.c
+++ b/src/_imaging.c
@@ -4213,7 +4213,7 @@ setup_module(PyObject *m) {
         extern const char *ImagingJpegVersion(void);
         PyObject *jpeglib_version = PyUnicode_FromString(ImagingJpegVersion());
         PyDict_SetItemString(d, "jpeglib_version", jpeglib_version);
-        Py_DECREF(jpeglib_version);
+        Py_XDECREF(jpeglib_version);
     }
 #endif
 
@@ -4222,7 +4222,7 @@ setup_module(PyObject *m) {
         extern const char *ImagingJpeg2KVersion(void);
         PyObject *jp2klib_version = PyUnicode_FromString(ImagingJpeg2KVersion());
         PyDict_SetItemString(d, "jp2klib_version", jp2klib_version);
-        Py_DECREF(jp2klib_version);
+        Py_XDECREF(jp2klib_version);
     }
 #endif
 
@@ -4233,7 +4233,7 @@ setup_module(PyObject *m) {
 #define tostr(a) tostr1(a)
     PyObject *libjpeg_turbo_version = PyUnicode_FromString(tostr(LIBJPEG_TURBO_VERSION));
     PyDict_SetItemString(d, "libjpeg_turbo_version", libjpeg_turbo_version);
-    Py_DECREF(libjpeg_turbo_version);
+    Py_XDECREF(libjpeg_turbo_version);
 #undef tostr
 #undef tostr1
 #else
@@ -4249,7 +4249,7 @@ setup_module(PyObject *m) {
         extern const char *ImagingImageQuantVersion(void);
         PyObject *imagequant_version = PyUnicode_FromString(ImagingImageQuantVersion());
         PyDict_SetItemString(d, "imagequant_version", imagequant_version);
-        Py_DECREF(imagequant_version);
+        Py_XDECREF(imagequant_version);
     }
 #else
     have_libimagequant = Py_False;
@@ -4268,7 +4268,7 @@ setup_module(PyObject *m) {
         extern const char *ImagingZipVersion(void);
         PyObject *zlibversion = PyUnicode_FromString(ImagingZipVersion());
         PyDict_SetItemString(d, "zlib_version", zlibversion);
-        Py_DECREF(zlibversion);
+        Py_XDECREF(zlibversion);
     }
 #endif
 
@@ -4277,7 +4277,7 @@ setup_module(PyObject *m) {
         extern const char *ImagingTiffVersion(void);
         PyObject *libtiff_version = PyUnicode_FromString(ImagingTiffVersion());
         PyDict_SetItemString(d, "libtiff_version", libtiff_version);
-        Py_DECREF(libtiff_version);
+        Py_XDECREF(libtiff_version);
 
         // Test for libtiff 4.0 or later, excluding libtiff 3.9.6 and 3.9.7
         PyObject *support_custom_tags;
@@ -4302,7 +4302,7 @@ setup_module(PyObject *m) {
 
     PyObject *pillow_version = PyUnicode_FromString(version);
     PyDict_SetItemString(d, "PILLOW_VERSION", pillow_version);
-    Py_DECREF(pillow_version);
+    Py_XDECREF(pillow_version);
 
     return 0;
 }
diff --git a/src/_imagingcms.c b/src/_imagingcms.c
index 779f31b9c..521151ae0 100644
--- a/src/_imagingcms.c
+++ b/src/_imagingcms.c
@@ -1534,7 +1534,7 @@ setup_module(PyObject *m) {
         v = PyUnicode_FromFormat("%d.%d", vn / 1000, (vn / 10) % 100);
     }
     PyDict_SetItemString(d, "littlecms_version", v);
-    Py_DECREF(v);
+    Py_XDECREF(v);
 
     return 0;
 }
diff --git a/src/_imagingft.c b/src/_imagingft.c
index 8697a74ff..beab7e0bd 100644
--- a/src/_imagingft.c
+++ b/src/_imagingft.c
@@ -1366,7 +1366,7 @@ setup_module(PyObject *m) {
 
     v = PyUnicode_FromFormat("%d.%d.%d", major, minor, patch);
     PyDict_SetItemString(d, "freetype2_version", v);
-    Py_DECREF(v);
+    Py_XDECREF(v);
 
 #ifdef HAVE_RAQM
 #if defined(HAVE_RAQM_SYSTEM) || defined(HAVE_FRIBIDI_SYSTEM)
@@ -1392,7 +1392,7 @@ setup_module(PyObject *m) {
         v = Py_None;
 #endif
         PyDict_SetItemString(d, "raqm_version", v);
-        Py_DECREF(v);
+        Py_XDECREF(v);
 
 #ifdef FRIBIDI_MAJOR_VERSION
         {
diff --git a/src/_imagingmorph.c b/src/_imagingmorph.c
index 46a40e96d..7f85bc096 100644
--- a/src/_imagingmorph.c
+++ b/src/_imagingmorph.c
@@ -244,7 +244,7 @@ setup_module(PyObject *m) {
 
     PyObject *version = PyUnicode_FromString("0.1");
     PyDict_SetItemString(d, "__version", version);
-    Py_DECREF(version);
+    Py_XDECREF(version);
 
     return 0;
 }
diff --git a/src/_webp.c b/src/_webp.c
index 5575e04f9..5c86341fa 100644
--- a/src/_webp.c
+++ b/src/_webp.c
@@ -964,7 +964,7 @@ setup_module(PyObject *m) {
 
     PyObject *webpdecoder_version = PyUnicode_FromString(WebPDecoderVersion_str());
     PyDict_SetItemString(d, "webpdecoder_version", webpdecoder_version);
-    Py_DECREF(webpdecoder_version);
+    Py_XDECREF(webpdecoder_version);
 
 #ifdef HAVE_WEBPANIM
     /* Ready object types */