diff --git a/pkgs/applications/networking/browsers/chromium/plugins.nix b/pkgs/applications/networking/browsers/chromium/plugins.nix
index ed3a58f62dbd..068ffe753ef1 100644
--- a/pkgs/applications/networking/browsers/chromium/plugins.nix
+++ b/pkgs/applications/networking/browsers/chromium/plugins.nix
@@ -100,11 +100,11 @@ let
 
   flash = stdenv.mkDerivation rec {
     name = "flashplayer-ppapi-${version}";
-    version = "31.0.0.122";
+    version = "31.0.0.148";
 
     src = fetchzip {
       url = "https://fpdownload.adobe.com/pub/flashplayer/pdc/${version}/flash_player_ppapi_linux.x86_64.tar.gz";
-      sha256 = "16cx92lq7zx8k22mfnsfjj09kyh3fi266qc5vvjz5b2rj53rmkdg";
+      sha256 = "1kvmsdg0qsq3jdhrlqqxxy33bjz8nc5rjy59ly4hhnp994szcx0s";
       stripRoot = false;
     };
 
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
index 7a26a4d19700..c791fedd378d 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/default.nix
@@ -74,7 +74,7 @@ let
 in
 stdenv.mkDerivation rec {
   name = "flashplayer-${version}";
-  version = "31.0.0.122";
+  version = "31.0.0.148";
 
   src = fetchurl {
     url =
@@ -85,14 +85,14 @@ stdenv.mkDerivation rec {
     sha256 =
       if debug then
         if arch == "x86_64" then
-          "0mjyb8mk4av8cia34gmqi0n4nq0spiblgn18z6f4nkx12wgdka2c"
+          "0cwsj4gn5m7caj5cjqjpf180pfjgyss9zp6zf2r728xbjjw87mc7"
         else
-          "07qgawd4xgy9690gbx0c6k97cp7lp04l70ccp4jd81y4xjsc9bq3"
+          "0yvj5k3dpzp3iydv4z6mw0kz64l7nfrwswb48jyyh519z81cj7vv"
       else
         if arch == "x86_64" then
-          "0264kcn0frgcl7zfd60ybs4r7x1p3f8nj496z264ax6qc390qr02"
+          "1apgikb8rsmgmfkk9mcffslkww9jj5wgi998imaqgr7ibyfl19bk"
         else
-          "0w170wz920imca8wc7kggl2vldn9k7cqm2xwvx8yqqi1p42a1941";
+          "03yh0rvgdssjxj4dvfan0qp9z9qwyvxzdv00idk3mj0v9japhyn2";
   };
 
   nativeBuildInputs = [ unzip ];
diff --git a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
index 5c4d0540289b..ac6068519f4a 100644
--- a/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
+++ b/pkgs/applications/networking/browsers/mozilla-plugins/flashplayer/standalone.nix
@@ -50,7 +50,7 @@
 
 stdenv.mkDerivation rec {
   name = "flashplayer-standalone-${version}";
-  version = "31.0.0.122";
+  version = "31.0.0.148";
 
   src = fetchurl {
     url =
@@ -60,9 +60,9 @@ stdenv.mkDerivation rec {
         "https://fpdownload.macromedia.com/pub/flashplayer/updaters/31/flash_player_sa_linux.x86_64.tar.gz";
     sha256 =
       if debug then
-        "1psd49bxn6w6kgcjhml44g5wb4za18m8apas8qyly4xcapdylias"
+        "08ysnbnsfs741w9bi0mfl62jhvj8fxh2in1kbp9xzzc40z3yqngn"
       else
-        "0g3h31pdxw91r3067zrkgyziwl18i5kidwx83y13ff4d17v999ss";
+        "0j7qw3iqswgc5df6zzm9jw0yf2mc7r29cp10b1y5p1ys0hrpm33d";
   };
 
   nativeBuildInputs = [ unzip ];