diff --git a/build/meson/lib/meson.build b/build/meson/lib/meson.build
index a02bd2d7a..f8014c625 100644
--- a/build/meson/lib/meson.build
+++ b/build/meson/lib/meson.build
@@ -98,7 +98,7 @@ if use_debug
   if cc_id == compiler_gcc or cc_id == compiler_clang
     libzstd_debug_cflags = ['-Wstrict-aliasing=1', '-Wswitch-enum',
       '-Wdeclaration-after-statement', '-Wstrict-prototypes',
-      '-Wundef', '-Wpointer-arith', '-Wformat-security', '-Wvla',
+      '-Wundef', '-Wpointer-arith', '-Wvla',
       '-Wformat=2', '-Winit-self', '-Wfloat-equal', '-Wwrite-strings',
       '-Wredundant-decls', '-Wmissing-prototypes', '-Wc++-compat']
   endif
diff --git a/contrib/adaptive-compression/Makefile b/contrib/adaptive-compression/Makefile
index c26efcd28..2c6867f5c 100644
--- a/contrib/adaptive-compression/Makefile
+++ b/contrib/adaptive-compression/Makefile
@@ -13,7 +13,7 @@ CPPFLAGS += -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(ZSTDDIR)/compress \
 CFLAGS   ?= -O3
 CFLAGS   += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow                 \
             -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-            -Wstrict-prototypes -Wundef -Wformat-security                   \
+            -Wstrict-prototypes -Wundef                                     \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings      \
             -Wredundant-decls
 CFLAGS   += $(DEBUGFLAGS)
diff --git a/contrib/largeNbDicts/Makefile b/contrib/largeNbDicts/Makefile
index 541f3969b..6fc382563 100644
--- a/contrib/largeNbDicts/Makefile
+++ b/contrib/largeNbDicts/Makefile
@@ -18,7 +18,7 @@ CFLAGS  ?= -O3
 CFLAGS  += -std=gnu99
 DEBUGFLAGS= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
             -Wstrict-aliasing=1 -Wswitch-enum \
-            -Wstrict-prototypes -Wundef -Wpointer-arith -Wformat-security \
+            -Wstrict-prototypes -Wundef -Wpointer-arith \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
             -Wredundant-decls
 CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
diff --git a/doc/educational_decoder/Makefile b/doc/educational_decoder/Makefile
index ace1294f8..c1d2c4cc4 100644
--- a/doc/educational_decoder/Makefile
+++ b/doc/educational_decoder/Makefile
@@ -7,7 +7,7 @@ CPPFLAGS += -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(ZSTDDIR)/compress \
 CFLAGS   ?= -O3
 CFLAGS   += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow                 \
             -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-            -Wstrict-prototypes -Wundef -Wformat-security                   \
+            -Wstrict-prototypes -Wundef                                     \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings      \
             -Wredundant-decls
 CFLAGS   += $(DEBUGFLAGS)
diff --git a/lib/Makefile b/lib/Makefile
index 386583e72..6a912a657 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -25,7 +25,7 @@ endif
 CFLAGS  ?= -O3
 DEBUGFLAGS= -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
             -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-            -Wstrict-prototypes -Wundef -Wpointer-arith -Wformat-security \
+            -Wstrict-prototypes -Wundef -Wpointer-arith \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
             -Wredundant-decls -Wmissing-prototypes -Wc++-compat
 CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
diff --git a/programs/Makefile b/programs/Makefile
index d1910fbb4..692980e4f 100644
--- a/programs/Makefile
+++ b/programs/Makefile
@@ -51,7 +51,7 @@ endif
 CFLAGS  ?= -O3
 DEBUGFLAGS+=-Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
             -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-            -Wstrict-prototypes -Wundef -Wpointer-arith -Wformat-security \
+            -Wstrict-prototypes -Wundef -Wpointer-arith \
             -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
             -Wredundant-decls -Wmissing-prototypes -Wc++-compat
 CFLAGS  += $(DEBUGFLAGS) $(MOREFLAGS)
diff --git a/tests/Makefile b/tests/Makefile
index 2daf0970f..2a9cd3d8f 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -33,7 +33,7 @@ endif
 CFLAGS     ?= -O3
 CFLAGS     += -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow                 \
               -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-              -Wstrict-prototypes -Wundef -Wformat-security                   \
+              -Wstrict-prototypes -Wundef                                     \
               -Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings      \
               -Wredundant-decls -Wmissing-prototypes
 CFLAGS     += $(DEBUGFLAGS) $(MOREFLAGS)
diff --git a/tests/fuzz/Makefile b/tests/fuzz/Makefile
index 4130f18e3..8a22ad1c5 100644
--- a/tests/fuzz/Makefile
+++ b/tests/fuzz/Makefile
@@ -30,7 +30,7 @@ FUZZ_CPPFLAGS := -I$(ZSTDDIR) -I$(ZSTDDIR)/common -I$(ZSTDDIR)/compress \
 	$(CPPFLAGS)
 FUZZ_EXTRA_FLAGS := -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow \
 	-Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement \
-	-Wstrict-prototypes -Wundef -Wformat-security \
+	-Wstrict-prototypes -Wundef \
 	-Wvla -Wformat=2 -Winit-self -Wfloat-equal -Wwrite-strings \
 	-Wredundant-decls \
 	-g -fno-omit-frame-pointer