diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0b46744e3..fd592d0ab 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -185,7 +185,7 @@ Debian testing GCC:
     - - |
           # apt_development
           echo -e "\e[0Ksection_start:`date +%s`:apt_development[collapsed=true]\r\e[0KInstalling development packages"
-      - apt-get install libsdl2-mixer-dev libpng-dev libcurl4-openssl-dev libgme-dev libopenmpt-dev libavformat-dev
+      - apt-get install libsdl2-mixer-dev libpng-dev libcurl4-openssl-dev libgme-dev libopenmpt-dev libavformat-dev libswscale-dev
       - |
           # apt_development
           echo -e "\e[0Ksection_end:`date +%s`:apt_development\r\e[0K"
@@ -261,7 +261,7 @@ Debian stable:amd64:
     - - |
           # apt_development
           echo -e "\e[0Ksection_start:`date +%s`:apt_development[collapsed=true]\r\e[0KInstalling development packages"
-      - apt-get install libsdl2-mixer-dev:amd64 libpng-dev:amd64 libcurl4-openssl-dev:amd64 libgme-dev:amd64 libopenmpt-dev:amd64 libavformat-dev:amd64
+      - apt-get install libsdl2-mixer-dev:amd64 libpng-dev:amd64 libcurl4-openssl-dev:amd64 libgme-dev:amd64 libopenmpt-dev:amd64 libavformat-dev:amd64 libswscale-dev:amd64
       - |
           # apt_development
           echo -e "\e[0Ksection_end:`date +%s`:apt_development\r\e[0K"
@@ -304,7 +304,7 @@ Debian stable:i386:
     - - |
           # apt_development
           echo -e "\e[0Ksection_start:`date +%s`:apt_development[collapsed=true]\r\e[0KInstalling development packages"
-      - apt-get install libsdl2-mixer-dev:i386 libpng-dev:i386 libcurl4-openssl-dev:i386 libgme-dev:i386 libopenmpt-dev:i386 libavformat-dev:i386
+      - apt-get install libsdl2-mixer-dev:i386 libpng-dev:i386 libcurl4-openssl-dev:i386 libgme-dev:i386 libopenmpt-dev:i386 libavformat-dev:i386 libswscale-dev:i386
       - |
           # apt_development
           echo -e "\e[0Ksection_end:`date +%s`:apt_development\r\e[0K"
@@ -348,7 +348,7 @@ Debian stable:arm64:
     - - |
           # apt_development
           echo -e "\e[0Ksection_start:`date +%s`:apt_development[collapsed=true]\r\e[0KInstalling development packages"
-      - apt-get install libsdl2-mixer-dev:arm64 libpng-dev:arm64 libcurl4-openssl-dev:arm64 libgme-dev:arm64 libopenmpt-dev:arm64 libavformat-dev:amd64
+      - apt-get install libsdl2-mixer-dev:arm64 libpng-dev:arm64 libcurl4-openssl-dev:arm64 libgme-dev:arm64 libopenmpt-dev:arm64 libavformat-dev:arm4 libswscale-dev:arm64
       - |
           # apt_development
           echo -e "\e[0Ksection_end:`date +%s`:apt_development\r\e[0K"
@@ -421,7 +421,7 @@ Debian stable Clang:
     - - |
           # apt_development
           echo -e "\e[0Ksection_start:`date +%s`:apt_development[collapsed=true]\r\e[0KInstalling development packages"
-      - apt-get install libsdl2-mixer-dev libpng-dev libcurl4-openssl-dev libgme-dev libopenmpt-dev libavformat-dev
+      - apt-get install libsdl2-mixer-dev libpng-dev libcurl4-openssl-dev libgme-dev libopenmpt-dev libavformat-dev libswscale-dev
       - |
           # apt_development
           echo -e "\e[0Ksection_end:`date +%s`:apt_development\r\e[0K"