diff --git a/src/decor.cxx b/src/decor.cxx
index 7f0edf9..09c4509 100644
--- a/src/decor.cxx
+++ b/src/decor.cxx
@@ -238,7 +238,7 @@ bool CDecor::LoadImages ()
   totalDim.y = DIMCELY * 2 * 6;
   iconDim.x  = DIMCELX * 2;
   iconDim.y  = DIMCELY * 2;
-  sprintf (filename, "image/floor%.3d.png", m_region);
+  snprintf (filename, sizeof (filename), "image/floor%.3d.png", m_region);
   if (!m_pPixmap->Cache (CHFLOOR, filename, totalDim, iconDim))
     return false;
 
@@ -246,11 +246,11 @@ bool CDecor::LoadImages ()
   totalDim.y = DIMOBJY * 8;
   iconDim.x  = DIMOBJX;
   iconDim.y  = DIMOBJY;
-  sprintf (filename, "image/obj%.3d.png", m_region);
+  snprintf (filename, sizeof (filename), "image/obj%.3d.png", m_region);
   if (!m_pPixmap->Cache (CHOBJECT, filename, totalDim, iconDim))
     return false;
 
-  sprintf (filename, "image/obj-o%.3d.png", m_region);
+  snprintf (filename, sizeof (filename), "image/obj-o%.3d.png", m_region);
   if (!m_pPixmap->Cache (CHOBJECTo, filename, totalDim, iconDim))
     return false;
 
@@ -708,7 +708,7 @@ void CDecor::BuildMoveObject (Sint32 x, Sint32 y, POINT pos, Sint32 rank)
     m_pPixmap->DrawIcon (
       -1, m_decor[x / 2][y / 2].objectChannel, m_decor[x / 2][y / 2].objectIcon,
       pos);
-    sprintf (string, "%d", m_move[rank].icon - MOVEICONNB);
+    snprintf (string, sizeof (string), "%d", m_move[rank].icon - MOVEICONNB);
     textPos.x = pos.x + DIMCELX / 2 + 32;
     textPos.y = pos.y + (DIMOBJY - DIMCELY * 2) + 36;
     DrawTextCenter (m_pPixmap, textPos, string, FONTLITTLE);
diff --git a/src/decstat.cxx b/src/decstat.cxx
index 49cea60..c9f95dc 100644
--- a/src/decstat.cxx
+++ b/src/decstat.cxx
@@ -713,7 +713,7 @@ void CDecor::StatisticDraw ()
       m_pPixmap->DrawIcon (-1, CHBUTTON, icon, pos);
 
       nb = pStatistic->nb;
-      sprintf (text, "%d", nb);
+      snprintf (text, sizeof (text), "%d", nb);
       pos.x += 3 + 34;
       pos.y += 5 + 7;
       DrawText (m_pPixmap, pos, text);
diff --git a/src/event.cxx b/src/event.cxx
index 011abc1..3943d01 100644
--- a/src/event.cxx
+++ b/src/event.cxx
@@ -2100,7 +2100,7 @@ bool CEvent::DrawButtons ()
     m_pPixmap->DrawPart (-1, CHBACK, pos, rect, 1); // dessine le fond
     if (m_speed > 1)
     {
-      sprintf (res, "x%d", m_speed);
+      snprintf (res, sizeof (res), "x%d", m_speed);
       DrawText (m_pPixmap, pos, res);
     }
 
@@ -2178,7 +2178,7 @@ bool CEvent::DrawButtons ()
       world = m_fileWorld[i];
       time  = m_fileTime[i];
 
-      sprintf (text, "%d", i + 1);
+      snprintf (text, sizeof (text), "%d", i + 1);
       lg    = GetTextWidth (text);
       pos.x = (420 + 460) / 2 - lg / 2;
       pos.y = 30 + 12 + 42 * i;
@@ -2436,19 +2436,19 @@ bool CEvent::DrawButtons ()
     DrawTextCenter (gettext ("Music\nvolume"), 399 + 40, 80);
     DrawTextCenter (gettext ("Video\nsequences"), 514 + 40, 80);
 
-    sprintf (res, "x%d", m_speed);
+    snprintf (res, sizeof (res), "x%d", m_speed);
     lg    = GetTextWidth (res);
     pos.x = (54 + 40) - lg / 2;
     pos.y = 330 - 20;
     DrawText (m_pPixmap, pos, res);
 
-    sprintf (res, "%d", m_pSound->GetAudioVolume ());
+    snprintf (res, sizeof (res), "%d", m_pSound->GetAudioVolume ());
     lg    = GetTextWidth (res);
     pos.x = (284 + 40) - lg / 2;
     pos.y = 330 - 20;
     DrawText (m_pPixmap, pos, res);
 
-    sprintf (res, "%d", m_pSound->GetMidiVolume ());
+    snprintf (res, sizeof (res), "%d", m_pSound->GetMidiVolume ());
     lg    = GetTextWidth (res);
     pos.x = (399 + 40) - lg / 2;
     pos.y = 330 - 20;
@@ -2465,7 +2465,7 @@ bool CEvent::DrawButtons ()
     if (!m_scrollSpeed)
       snprintf (res, sizeof (res), "%s", gettext ("None"));
     else
-      sprintf (res, "%d", m_scrollSpeed);
+      snprintf (res, sizeof (res), "%d", m_scrollSpeed);
     lg    = GetTextWidth (res);
     pos.x = (169 + 40) - lg / 2;
     pos.y = 330 - 20;
@@ -4275,7 +4275,7 @@ void CEvent::PrivateLibelle ()
     snprintf (
       buffer, sizeof (buffer), "%s",
       gettext ("1|The Blupi population must\n1|be of at least %d Blupi."));
-    sprintf (string, buffer, term.nbMaxBlupi);
+    snprintf (string, sizeof (string), buffer, term.nbMaxBlupi);
     strcat (m_libelle, "\n1|\n");
     strcat (m_libelle, string);
   }
diff --git a/src/sound.cxx b/src/sound.cxx
index 8089453..83201ab 100644
--- a/src/sound.cxx
+++ b/src/sound.cxx
@@ -137,7 +137,7 @@ void CSound::CacheAll ()
 
   for (i = 0; i < MAXSOUND; i++)
   {
-    sprintf (name, "sound%.3d.wav", i);
+    snprintf (name, sizeof (name), "sound%.3d.wav", i);
     if (!Cache (i, name))
       break;
   }
diff --git a/src/text.cxx b/src/text.cxx
index b915a26..7f1749e 100644
--- a/src/text.cxx
+++ b/src/text.cxx
@@ -335,7 +335,7 @@ void DrawBignum (CPixmap * pPixmap, POINT pos, Sint32 num)
   Sint32 start, lg;
   RECT   rect;
 
-  sprintf (string, "%d", num);
+  snprintf (string, sizeof (string), "%d", num);
 
   rect.top    = 0;
   rect.bottom = 52;
@@ -361,7 +361,7 @@ Sint32 GetBignumWidth (Sint32 num)
   Sint32 start, lg;
   Sint32 width = -4;
 
-  sprintf (string, "%d", num);
+  snprintf (string, sizeof (string), "%d", num);
 
   while (string[i] != 0)
   {